Hochtemperaturwerkstoffe

Die Hochtemperaturwerkstoffgruppe am Lehrstuhl für Allgemeine Werkstoffeigenschaften beschäftigt sich mit der erkenntnisorientierten Grundlagen- sowie anwendungsnahen Forschung im Bereich metallischer und intermetallischer Werkstoffe für Hochtemperaturanwendungen.

Der Schwerpunkt liegt dabei auf der Untersuchung der Korrelation zwischen den mechanischen Eigenschaften wie Härte, Bruchzähigkeit, Kriech-, Ermüdungs- und Warmfestigkeit und der Mikrostruktur und Zusammensetzung der Werkstoffe. Neben der Verwendung zahlreicher mikroskopischer und mechanischer Prüfverfahren am Lehrstuhl werden auch Synchrotron- und Neutronenstrahlquellen zur Charakterisierung verwendet. Ziel der Forschung ist die Entwicklung und Optimierung insbesondere von Nickel- und Kobaltbasis-Superlegierungen, Titanaluminiden und Oxidationsschutzschichten.

Die Hochtemperaturwerkstoffgruppe arbeitet mit Partnern aus der Flugzeug- und Automobilindustrie zusammen und mehrere Projekte sind Teil von DFG-geförderten Programmen.

PD Dr. Steffen Neumeier

Gruppenleiter Hochtemperaturwerkstoffe

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27502
E-Mail: steffen.neumeier@fau.de

Dr. Ashton Egan, Ph.D.

PostDoc

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27506
E-Mail: ashton.egan@fau.de

Jakob Bandorf, M. Sc.

Doktorand

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27481
E-Mail: jakob.bandorf@fau.de

Jan Vollhüter, M. Sc.

Doktorand

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27485
E-Mail: jan.vollhueter@fau.de

Oliver Nagel, M. Sc.

Doktorand

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27474
E-Mail: oliver.nagel@fau.de

Julian Völkl, M. Sc.

Doktorand

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27486
E-Mail: julian.voelkl@fau.de

Andreas Hausmann, M. Sc.

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27486
E-Mail: andreas.hausmann@fau.de

Simon Helmert, M. Sc.

Doktorand

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-25240
E-Mail: simon.helmert@fau.de

Benno Schönleber, M. Sc.

Doktorand

Department Werkstoffwissenschaften (WW)
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Telefon: +49 9131 85-27474
E-Mail: benno.schoenleber@fau.de

In-situ Kompositwerkstoffe wie NiAl-(Cr,Mo) oder Nb-Si-Cr sind vielversprechende Materialsysteme für den Einsatz als Strukturwerkstoff bei hohen Temperaturen. Neben einer geringen Dichte weisen die Systeme als eutektische Legierung einen hohen Schmelzpunkt, gute Wärmeleitfähigkeit und verbesserte Oxidationsbeständigkeit auf. Der Einsatz dieser Materialgruppe wird jedoch wegen einer niedrigen Bruchzähigkeit bei Raumtemperatur und einer geringen Kriechbeständigkeit bei hoher Temperatur erschwert. In diesem Projekt werden daher Möglichkeiten untersucht, diese Nachteile zu verbessern.
→ Mehr Informationen

Superlegierungen zählen zu den Hochtemperaturwerkstoffen und sind ein wichtiger Bestandteil von Flugzeugturbinen sowie stationären Gasturbinen. Dabei ist eine stetige Weiterentwicklung dieser Materialgruppe von großer Bedeutung, um in Zukunft durch geringere Materialkosten, besseren Wirkungsgrad und leichtere Bauweisen, Kosten und Ressourcen zu sparen.
→ Mehr Informationen

Selective laser melting (SLM) ist eine neue additive Herstellungsweise, um Bauteile von hoher Komplexität in kleinen Stückzahlen herzustellen. Die mechanischen Eigenschaften können dabei das Niveau von geschmiedeten Bauteilen erreichen und teilweise sogar übersteigen. Viele Materialsysteme werden bereits kommerziell angewendet.
→ Mehr Informationen

Die γ′-gehärteten Kobaltbasis-Superlegierungen sind eine sehr junge Materialklasse (bekannt erst seit 2006), die jedoch grundlegende Eigenschaften mit den bereits seit über 60 Jahren bekannten Nickelbasis-Superlegierungen teilt. Ni-Basis-Superlegierungen werden insbesondere in Flugzeugtriebwerken und stationären Gasturbinen als Turbinenschaufeln oder -scheiben eingesetzt. Dort, wo die Gastemperaturen am höchsten sind, werden sie oft in einkristalliner Form verwendet.
→ Mehr Informationen

Die Kommission der Europäischen Union (EU) hat sich mit dem Europäischen Green Deal die ehrgeizige Aufgabe gestellt, die Reduzierung der Treibhausgasemissionen mit der nachhaltigen Umstellung der europäischen Industrie auf eine klimaneutrale Wirtschaft miteinander zu verbinden. In diesem Rahmen wurde Wasserstoff als zentral für die Lösung der Probleme und für die Entwicklung der europäischen Energiesysteme hervorgehoben.
→ Mehr Informationen

Neumeier S., Rehman HU., Neuner J., Zenk C., Michel S., Schuwalow S., Rogal J., Drautz R., Göken M.:
Diffusion of solutes in fcc Cobalt investigated by diffusion couples and first principles kinetic Monte Carlo
In: Acta Materialia 106 (2016), S. 304-312
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2016.01.028
Zomorodpoosh S., Volz N., Neumeier S., Roslyakova I.:
Application of change-point analysis to the selection of representative data in creep experiments
In: Journal of Physics Communications 4 (2020), S. 1-11
ISSN: 2399-6528
DOI: 10.1088/2399-6528/aba7ff
Lenz M., Wu M., He J., Makineni SK., Gault B., Raabe D., Neumeier S., Spiecker E.:
Atomic Structure and Chemical Composition of Planar Fault Structures in Co-Base Superalloys
14th International Symposium on Superalloys, Superalloys 2021 (Seven Springs, PA, 12. September 2021 - 16. September 2021)
In: Sammy Tin, Mark Hardy, Justin Clews, Jonathan Cormier, Qiang Feng, John Marcin, Chris O'Brien, Akane Suzuki (Hrsg.): Minerals, Metals and Materials Series 2020
DOI: 10.1007/978-3-030-51834-9_90
Volz N., Zenk C., Halvaci T., Matuszewska K., Neumeier S., Göken M.:
Castability and Recrystallization Behavior of γ′-Strengthened Co-Base Superalloys
DOI: 10.1007/978-3-030-51834-9_88
Kirchmayer A., Lyu H., Pröbstle M., Houlle F., Förner A., Huenert D., Göken M., Felfer P., Bitzek E., Neumeier S.:
Combining Experiments and Atom Probe Tomography-Informed Simulations on γ′ Precipitation Strengthening in the Polycrystalline Ni-Base Superalloy A718Plus
In: Advanced Engineering Materials (2020)
ISSN: 1438-1656
DOI: 10.1002/adem.202000149
Hausmann D., Solís C., Freund L., Volz N., Heinemann A., Göken M., Gilles R., Neumeier S.:
Enhancing the high-temperature strength of a Co-base superalloy by optimizing the γ/γ' microstructure
In: Metals 10 (2020), Art.Nr.: 321
ISSN: 2075-4701
DOI: 10.3390/met10030321
Haußmann L., Neumeier S., Kolb M., Ast J., Mohanty G., Michler J., Göken M.:
Local Mechanical Properties at the Dendrite Scale of Ni-Based Superalloys Studied by Advanced High Temperature Indentation Creep and Micropillar Compression Tests
14th International Symposium on Superalloys, Superalloys 2021 (Seven Springs, PA, 12. September 2021 - 16. September 2021)
In: Sammy Tin, Mark Hardy, Justin Clews, Jonathan Cormier, Qiang Feng, John Marcin, Chris O'Brien, Akane Suzuki (Hrsg.): Minerals, Metals and Materials Series 2020
DOI: 10.1007/978-3-030-51834-9_26
Förner A., Giese S., Arnold C., Felfer P., Körner C., Neumeier S., Göken M.:
Nanoscaled eutectic NiAl-(Cr,Mo) composites with exceptional mechanical properties processed by electron beam melting
In: Scientific Reports 10 (2020), Art.Nr.: 15153
ISSN: 2045-2322
DOI: 10.1038/s41598-020-72093-5
He J., Zenk C., Zhou X., Neumeier S., Raabe D., Gault B., Makineni SK.:
On the atomic solute diffusional mechanisms during compressive creep deformation of a Co-Al-W-Ta single crystal superalloy
In: Acta Materialia 184 (2020), S. 86-99
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2019.11.035
Bezold A., Volz N., Xue F., Zenk CH., Neumeier S., Göken M.:
On the Precipitation-Strengthening Contribution of the Ta-Containing Co3(Al,W)-Phase to the Creep Properties of γ/γ′ Cobalt-Base Superalloys
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 51 (2020), S. 1567-1574
ISSN: 1073-5623
DOI: 10.1007/s11661-020-05626-2
Diepold B., Vorlaufer N., Neumeier S., Gartner T., Göken M.:
Optimization of the heat treatment of additively manufactured Ni-base superalloy IN718
In: International Journal of Minerals, Metallurgy and Materials 27 (2020), S. 640-648
ISSN: 1674-4799
DOI: 10.1007/s12613-020-1991-6
Zenk C., Volz N., Bezold A., Huber LK., Eggeler Y., Spiecker E., Göken M., Neumeier S.:
The Effect of Alloying on the Thermophysical and Mechanical Properties of Co–Ti–Cr-Based Superalloys
DOI: 10.1007/978-3-030-51834-9_89
Giese S., Bezold A., Pröbstle M., Heckl A., Neumeier S., Göken M.:
The Importance of Diffusivity and Partitioning Behavior of Solid Solution Strengthening Elements for the High Temperature Creep Strength of Ni-Base Superalloys
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2020)
ISSN: 1073-5623
DOI: 10.1007/s11661-020-06028-0
Kubacka D., Eggeler Y., Volz N., Neumeier S., Spiecker E.:
Using Rapid Thermal Annealing for Studying Early Stages of High-Temperature Oxidation of Superalloys
DOI: 10.1007/978-3-030-51834-9_74
Giese S., Kern F., Macauley C., Neumeier S., Göken M.:
Fracture resistance of yttria stabilized zirconia manufactured from stabilizer-coated nanopowder by micro cantilever bending tests
In: Journal of the European Ceramic Society (2019)
ISSN: 0955-2219
DOI: 10.1016/j.jeurceramsoc.2019.05.006
Katnagallu S., Stephenson LT., Mouton I., Freysoldt C., Subramanyam APA., Jenke J., Ladines AN., Neumeier S., Hammerschmidt T., Drautz R., Neugebauer J., Vurpillot F., Raabe D., Gault B.:
Imaging individual solute atoms at crystalline imperfections in metals
In: New Journal of Physics 21 (2019)
ISSN: 1367-2630
DOI: 10.1088/1367-2630/ab5cc4
Weiser M., Galetz MC., Zschau HE., Zenk C., Neumeier S., Göken M., Virtanen S.:
Influence of Co to Ni ratio in γ′-strengthened model alloys on oxidation resistance and the efficacy of the halogen effect at 900 °C
In: Corrosion Science (2019)
ISSN: 0010-938X
DOI: 10.1016/j.corsci.2019.05.007
Giese S., Neumeier S., Bergholz J., Naumenko D., Quadakkers WJ., Vassen R., Göken M.:
Influence of Different Annealing Atmospheres on the Mechanical Properties of Freestanding MCrAlY Bond Coats Investigated by Micro-Tensile Creep Tests
In: Metals 9 (2019)
ISSN: 2075-4701
DOI: 10.3390/met9060692
Zenk C., Gibson JS., Maier-Kiener V., Neumeier S., Göken M., Korte-Kerzel S.:
Low temperature deformation of MoSi2 and the effect of Ta, Nb and Al as alloying elements
In: Acta Materialia 181 (2019), S. 385-398
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2019.09.008
Giese S., Neumeier S., Amberger-Matschkal D., Bergholz J., Vaßen R., Göken M.:
Microtensile creep testing of freestanding MCrAlY bond coats
In: Journal of Materials Research (2019)
ISSN: 0884-2914
DOI: 10.1557/jmr.2019.169
Matschkal D., Kolb M., Neumeier S., Gao S., Hartmaier A., Durst K., Göken M.:
New flat-punch indentation creep testing approach for characterizing the local creep properties at high temperatures
In: Materials & Design 183 (2019), Art.Nr.: 108090
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2019.108090
Lenz M., Eggeler Y., Müller J., Zenk C., Volz N., Wollgramm P., Eggeler G., Neumeier S., Göken M., Spiecker E.:
Tension/Compression asymmetry of a creep deformed single crystal Co-base superalloy
In: Acta Materialia 166 (2019), S. 597-610
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2018.12.053
Pyczak F., Neumeier S., Göken M.:
Temperature dependence of element partitioning in rhenium and ruthenium bearing nickel-base superalloys
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 527 (2010), S. 7939-7943
ISSN: 0921-5093
DOI: 10.1016/j.msea.2010.08.091
Zenk C., Volz N., Zenk C., Felfer P., Neumeier S.:
Impact of the Co/Ni-Ratio on Microstructure, Thermophysical Properties and Creep Performance of Multi-Component γ′-Strengthened Superalloys
In: Crystals 10 (2020), S. 1058
ISSN: 2073-4352
DOI: 10.3390/cryst10111058
Xue F., Zenk C., Freund L., Neumeier S., Göken M.:
Understanding raft formation and precipitate shearing during double minimum creep in a γ′-strengthened single crystalline Co-base superalloy
In: Philosophical Magazine (2020)
ISSN: 1478-6443
DOI: 10.1080/14786435.2020.1836415
Makineni SK., Lenz M., Kontis P., Li Z., Kumar A., Felfer P., Neumeier S., Herbig M., Spiecker E., Raabe D., Gault B.:
Correlative Microscopy-Novel Methods and Their Applications to Explore 3D Chemistry and Structure of Nanoscale Lattice Defects: A Case Study in Superalloys
In: JOM Journal of the Minerals, Metals and Materials Society 70 (2018), S. 1736-1743
ISSN: 1047-4838
DOI: 10.1007/s11837-018-2802-7
Xue F., Zenk C., Freund L., Hoelzel M., Neumeier S., Göken M.:
Double minimum creep in the rafting regime of a single-crystal Co-base superalloy
In: Scripta Materialia 142 (2018), S. 129-132
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2017.08.039
Makineni SK., Lenz M., Neumeier S., Spiecker E., Raabe D., Gault B.:
Elemental segregation to antiphase boundaries in a crept CoNi-based single crystal superalloy
In: Scripta Materialia (2018), S. 62-66
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2018.07.042
Kimmel AC., Malkowski TF., Griffiths S., Hertweck B., Steigerwald T., Freund L., Neumeier S., Göken M., Speck JS., Schlücker E.:
High-temperature corrosion of Inconel (R) Alloy 718, Haynes (R) 282 (R) Alloy and CoWAlloy1&2 in supercritical ammonia/ammonium chloride solutio
In: Journal of Crystal Growth 498 (2018), S. 289-300
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2018.06.018
Carton-Cordero M., Campos M., Freund L., Kolb M., Neumeier S., Göken M., Torralba JM.:
Microstructure and compression strength of Co-based superalloys hardened by γ′ and carbide precipitation
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 734 (2018), S. 437-444
ISSN: 0921-5093
DOI: 10.1016/j.msea.2018.08.007
Makineni SK., Kumar A., Lenz M., Kontis P., Meiners T., Zenk C., Zaefferer S., Eggeler G., Neumeier S., Spiecker E., Raabe D., Gault B.:
On the diffusive phase transformation mechanism assisted by extended dislocations during creep of a single crystal CoNi-based superalloy
In: Acta Materialia (2018), S. 362-371
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2018.05.074
Kolb M., Freund L., Fischer F., Povstugar I., Makineni SK., Gault B., Raabe D., Müller J., Spiecker E., Neumeier S., Göken M.:
On the grain boundary strengthening effect of boron in γ/γ′ Cobalt-base superalloys
In: Acta Materialia (2018), S. 247-254
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2017.12.020
Cormier J., Rae C., Neumeier S., Hardy M., Reed R.:
Superalloys and Their Applications Foreword
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 49A (2018), S. 3763-3763
ISSN: 1073-5623
DOI: 10.1007/s11661-018-4803-0
Freund L., Stark A., Kirchmayer A., Schell N., Pyczak F., Göken M., Neumeier S.:
The Effect of a Grain Boundary Pinning B2 Phase on Polycrystalline Co-Based Superalloys with Reduced Density
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 49A (2018), S. 4070-4078
ISSN: 1073-5623
DOI: 10.1007/s11661-018-4757-2
Volz N., Zenk C., Cherukuri R., Kalfhaus T., Weiser M., Makineni SK., Betzing C., Lenz M., Gault B., Fries SG., Schreuer J., Vassen R., Virtanen S., Raabe D., Spiecker E., Neumeier S., Göken M.:
Thermophysical and Mechanical Properties of Advanced Single Crystalline Co-base Superalloys
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2018), S. 1-11
ISSN: 1073-5623
DOI: 10.1007/s11661-018-4705-1
Zietara M., Neumeier S., Göken M., Czyrska-Filemonowicz A.:
Characterization of γ and γ′ Phases in 2nd and 4th Generation Single Crystal Nickel-Base Superalloys
In: Metals and Materials International 23 (2017), S. 126-131
ISSN: 1598-9623
DOI: 10.1007/s12540-017-6109-y
Iqbal F., Pyczak F., Neumeier S., Göken M.:
Crack nucleation and elastic / plastic deformation of TiAl alloys investigated by in-situ loaded atomic force microscopy
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 689 (2017), S. 11-16
ISSN: 0921-5093
DOI: 10.1016/j.msea.2017.02.017
Freund L., Giese S., Schwimmer D., Höppel HW., Neumeier S., Göken M.:
High temperature properties and fatigue strength of novel wrought gamma/gamma' Co-base superalloys
In: Journal of Materials Research 32 (2017), S. 4475-4482
ISSN: 0884-2914
DOI: 10.1557/jmr.2017.315
Kolb M., Zenk C., Kirzinger A., Povstugar I., Raabe D., Neumeier S., Göken M.:
Influence of rhenium on γ′-strengthened cobalt-base superalloys
In: Journal of Materials Research 32 (2017), S. 2551-2559
ISSN: 0884-2914
DOI: 10.1557/jmr.2017.242
Rehman HU., Burst K., Neumeier S., Sato A., Reed R., Göken M.:
On the temperature dependent strengthening of nickel by transition metal solutes
In: Acta Materialia 137 (2017), S. 54-63
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2017.05.038
Freund L., Messe OMDM., Barnard JS., Göken M., Neumeier S., Rae CMF.:
Segregation assisted microtwinning during creep of a polycrystalline L1(2)-hardened Co-base superalloy
In: Acta Materialia 123 (2017), S. 295-304
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2016.10.048
Huenert D., Pröbstle M., Casanova A., Schlütter R., Krakow R., Büscher M., Randelzhofer P., Evans A., Löhnert K., Witulski T., Neumeier S., Rae CMF.:
ATI718PLUS® - New nickel based disc alloy and its capability
13th International Symposium on Superalloys, SUPERALLOYS 2016 (Seven Springs, 11. September 2016 - 15. September 2016)
In: M. Hardy, E. Huron, U. Glatzel, B. Griffin, B. Lewis, C. Rae, V. Seetharaman, S. Tin (Hrsg.): Superalloys 2016: Proceedings of the 13th Intenational Symposium of Superalloys 2016
DOI: 10.1002/9781119075646.ch84
Povstugar I., Zenk C., Li R., Choi P-., Neumeier S., Dolotko O., Hoelzel M., Göken M., Raabe D.:
Elemental partitioning, lattice misfit and creep behaviour of Cr containing γ′ strengthened Co base superalloys
In: Materials Science and Technology 32 (2016), S. 220-225
ISSN: 0267-0836
DOI: 10.1179/1743284715Y.0000000112
Pröbstle M., Neumeier S., Feldner P., Rettig R., Helmer H., Singer R., Göken M.:
Improved creep strength of nickel-base superalloys by optimized γ/γ′ partitioning behavior of solid solution strengthening elements
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 676 (2016), S. 411-420
ISSN: 0921-5093
DOI: 10.1016/j.msea.2016.08.121
Zenk C., Neumeier S., Engl N., Fries SG., Dolotko O., Weiser M., Virtanen S., Göken M.:
Intermediate Co/Ni-base model superalloys - Thermophysical properties, creep and oxidation
In: Scripta Materialia 112 (2016), S. 83-86
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2015.09.018
Kolb M., Wheeler JM., Mathur HN., Neumeier S., Korte-Kerzel S., Pyczak F., Michler J., Göken M.:
Local mechanical properties of the (β0+ω0) composite in multiphase titanium aluminides studied with nanoindentation at room and high temperatures
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 665 (2016), S. 135-140
ISSN: 0921-5093
DOI: 10.1016/j.msea.2016.04.026
Cartón-Cordero M., Campos M., Freund L., Kolb M., Neumeier S., Göken M., Torralba JM.:
Mechanical behaviour of novel sintered Co-Al-W alloys at high temperatures
World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016
URL: https://www.scopus.com/record/display.uri?eid=2-s2.0-85035325510∨igin=inward
Brenne F., Taube A., Pröbstle M., Neumeier S., Schwarze D., Schaper M., Niendorf T.:
Microstructural design of Ni-base alloys for high-temperature applications: impact of heat treatment on microstructure and mechanical properties after selective laser melting
In: Progress in Additive Manufacturing 1 (2016), S. 141 - 151
ISSN: 2363-9512
DOI: 10.1007/s40964-016-0013-8
Zenk C., Bauer A., Goik P., Neumeier S., Stone HJ., Göken M.:
Microstructure, Lattice Misfit, and High-Temperature Strength of γ′-Strengthened Co-Al-W-Ge Model Superalloys
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 47 (2016), S. 2141-2149
ISSN: 1073-5623
DOI: 10.1007/s11661-016-3408-8
Pröbstle M., Neumeier S., Hopfenmüller J., Freund L., Niendorf T., Schwarze D., Göken M.:
Superior creep strength of a nickel-based super alloy produced by selective laser melting
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 674 (2016), S. 299-307
ISSN: 0921-5093
DOI: 10.1016/j.msea.2016.07.061
Hammerschmidt T., Koßmann J., Zenk C., Neumeier S., Göken M., Lopez-Galilea I., Mujica Roncery L., Huth S., Kostka A., Theisen W., Drautz R.:
The role of local chemical composition for TCP phase precipitation in Ni-base and Co-base superalloys
13th International Symposium on Superalloys, SUPERALLOYS 2016
DOI: 10.1002/9781119075646.ch10
Zenk C., Neumeier S., Kolb M., Volz N., Fries SG., Dolotko O., Povstugar I., Raabe D., Göken M.:
The role of the base element in γ′ strengthened cobalt/nickel-base superalloys
13th International Symposium on Superalloys, SUPERALLOYS 2016
DOI: 10.1002/9781119075646.ch103
Bhowmik A., Neumeier S., Rhode S., Stone HJ.:
Allotropic transformation induced stacking faults and discontinuous coarsening in a γ-γ′ Co-base alloy
In: Intermetallics 59 (2015), S. 95-101
ISSN: 0966-9795
DOI: 10.1016/j.intermet.2014.12.013
Göken M., Glatzel U.:
DFG Research Training Group 1229 "Stable and Metastable Multi-Phase Systems for Elevated Service Temperatures"
In: Advanced Engineering Materials 17 (2015), S. 1096-1098
ISSN: 1438-1656
DOI: 10.1002/adem.201500330
Webler R., Ziener M., Neumeier S., Terberger PJ., Vassen R., Göken M.:
Evolution of microstructure and mechanical properties of coated Co-base superalloys during heat treatment and thermal exposure
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 628 (2015), S. 374-381
ISSN: 0921-5093
DOI: 10.1016/j.msea.2015.01.060
Freund L., Bauer A., Benker L., Neumeier S., Göken M.:
Formation of Cuboidal Co3AlC Precipitates in Carbon-Containing Co-Al-W-Based Superalloys
In: Advanced Engineering Materials 17 (2015), S. 1113-1118
ISSN: 1438-1656
DOI: 10.1002/adem.201500171
Bauer A., Neumeier S., Pyczak F., Göken M.:
Influence of iridium on the properties of γ′-strengthened co-base superalloys
In: Advanced Engineering Materials 17 (2015), S. 748-754
ISSN: 1438-1656
DOI: 10.1002/adem.201400266
Terberger PJ., Sebold D., Webler R., Ziener M., Neumeier S., Klein L., Virtanen S., Göken M., Vassen R.:
Isothermal aging of a γ′-strengthened Co-Al-W alloy coated with vacuum plasma-sprayed MCrAlY bond coats
In: Surface & Coatings Technology 276 (2015), S. 360-367
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2015.06.048
Kossmann J., Zenk C., Lopez-Galilea I., Neumeier S., Kostka A., Huth S., Theisen W., Göken M., Drautz R., Hammerschmidt T.:
Microsegregation and precipitates of an as-cast Co-based superalloy-microstructural characterization and phase stability modelling
In: Journal of Materials Science 50 (2015), S. 6329-6338
ISSN: 0022-2461
DOI: 10.1007/s10853-015-9177-8
Rehman HU., Durst K., Neumeier S., Parsa AB., Kostka A., Eggeler G., Göken M.:
Nanoindentation studies of the mechanical properties of the mu phase in a creep deformed Re containing nickel-based superalloy
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 634 (2015), S. 202-208
ISSN: 0921-5093
DOI: 10.1016/j.msea.2015.03.045
Neumeier S., Freund L., Göken M.:
Novel wrought γ/γ′ cobalt base superalloys with high strength and improved oxidation resistance
In: Scripta Materialia 109 (2015), S. 104-107
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2015.07.030
Rettig R., Ritter N., Helmer H., Neumeier S., Singer R.:
Single-crystal nickel-based superalloys developed by numerical multi-criteria optimization techniques: Design based on thermodynamic calculations and experimental validation
In: Modelling and Simulation in Materials Science and Engineering 23 (2015), Art.Nr.: 035004
ISSN: 1361-651X
DOI: 10.1088/0965-0393/23/3/035004
Pyczak F., Bauer A., Göken M., Lorenz U., Neumeier S., Oehring M., Paul J., Schell N., Schreyer A., Stark A., Symanzik F.:
The effect of tungsten content on the properties of L12-hardened Co-Al-W alloys
In: Journal of Alloys and Compounds 632 (2015), S. 110-115
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2015.01.031
Lopez-Galilea I., Zenk C., Neumeier S., Huth S., Theisen W., Göken M.:
The thermal stability of intermetallic compounds in an as-cast SX co-base superalloy
In: Advanced Engineering Materials 17 (2015), S. 741-747
ISSN: 1438-1656
DOI: 10.1002/adem.201400249
Povstugar I., Choi PP., Neumeier S., Bauer A., Zenk C., Göken M., Raabe D.:
Elemental partitioning and mechanical properties of Ti- and Ta-containing Co-Al-W-base superalloys studied by atom probe tomography and nanoindentation
In: Acta Materialia 78 (2014), S. 78-85
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2014.06.020
Zenk C., Neumeier S., Stone HJ., Göken M.:
Mechanical properties and lattice misfit of γ/γ' strengthened Co-base superalloys in the Co-W-Al-Ti quaternary system
In: Intermetallics 55 (2014), S. 28-39
ISSN: 0966-9795
DOI: 10.1016/j.intermet.2014.07.006
Bhowmik A., Neumeier S., Barnard JS., Zenk C., Göken M., Rae CMF., Stone HJ.:
Microstructure and mechanical properties of Cr-Ta-Si Laves phase-based alloys at elevated temperatures
In: Philosophical Magazine 94 (2014), S. 3914-3944
ISSN: 1478-6443
DOI: 10.1080/14786435.2014.971086
Neumeier S., Pröbstle M., Huenert D., Göken M.:
Tensile and creep strength of thermally exposed allvac 718Plus
8th International Symposium on Superalloy 718 and Derivatives 2014
In: Proceedings of 8th International Symposium on Superalloy 718 and Derivatives 2014 2014
URL: https://www.scopus.com/record/display.uri?eid=2-s2.0-84923090036∨igin=inward
Mughrabi H.:
The importance of sign and magnitude of γ/γ′ lattice misfit in superalloys - With special reference to the new γ′-hardened cobalt-base superalloys
In: Acta Materialia 81 (2014), S. 21-29
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2014.08.005
Pyczak F., Bauer A., Göken M., Neumeier S., Lorenz U., Oehring M., Schell N., Schreyer A., Stark A., Symanzik F.:
Plastic deformation mechanisms in a crept L12 hardened Co-base superalloy
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 571 (2013), S. 13-18
ISSN: 0921-5093
DOI: 10.1016/j.msea.2013.02.007
Schreiner J., Götz-Neunhoeffer F., Neubauer J., Bergold S., Webler R., Volkmann S., Jansen D.:
Advanced Rietveld refinement and SEM analysis of tobermorite in chemically diverse autoclaved aerated concrete
In: Powder Diffraction (2019)
ISSN: 0885-7156
DOI: 10.1017/S0885715619000149
Bresler J., Neumeier S., Ziener M., Pyczak F., Göken M.:
The influence of niobium, tantalum and zirconium on the microstructure and creep strength of fully lamellar γ/α2 titanium aluminides
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 744 (2019), S. 46-53
ISSN: 0921-5093
DOI: 10.1016/j.msea.2018.11.152
Freund L., Stark A., Pyczak F., Schell N., Göken M., Neumeier S.:
The grain boundary pinning effect of the μ phase in an advanced polycrystalline γ/γ′ Co-base superalloy
In: Journal of Alloys and Compounds 753 (2018), S. 333-342
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2018.04.204
Biggemann J., Diepold B., Pezoldt M., Stumpf M., Greil P., Fey T.:
Automated 3D assembly of periodic alumina-epoxy composite structures
In: Journal of the American Ceramic Society (2018)
ISSN: 0002-7820
DOI: 10.1111/jace.15586
Göken M., Eggeler G., Zhu Y., Lu L.:
MECHANICAL PROPERTIES AND MICROSTRUCTURE OF ADVANCED METALLIC ALLOYS IN HONOR OF PROF. HAEL MUGHRABI - PART B - HIGH TEMPERATURE AND NANOMATERIALS Introduction
In: Journal of Materials Research 32 (2017), S. 4463-4465
ISSN: 0884-2914
DOI: 10.1557/jmr.2017.469
Bauer A., Neumeier S., Pyczak F., Singer R., Göken M.:
Creep properties of different γ'-strengthened Co-base superalloys
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 550 (2012), S. 333-341
ISSN: 0921-5093
DOI: 10.1016/j.msea.2012.04.083
Bauer A., Neumeier S., Pyczak F., Göken M.:
Creep Strength and Microstructure of Polycrystalline γ′ - Strengthened Cobalt-Base Superalloys
DOI: 10.1002/9781118516430.ch77
Heckl A., Cenanovic S., Göken M., Singer R.:
Discontinuous precipitation and phase stability in Re- and Ru-containing nickel-base superalloys
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 43 (2012), S. 10-19
ISSN: 1073-5623
DOI: 10.1007/s11661-011-0833-6
Göken M., Webler R., Krottenthaler M., Neumeier S., Durst K.:
Local Fracture Toughness and Residual Stress Measurements on NiAl Bond Coats by Micro Cantilever and FIB Based Bar Milling Tests
John Wiley and Sons, 2012
ISBN: 9780470943205
DOI: 10.1002/9781118516430.ch10
Schloffer M., Iqbal F., Gabrisch H., Schwaighofer E., Schimansky FP., Mayer S., Stark A., Lippmann T., Göken M., Pyczak F., Clemens H.:
Microstructure development and hardness of a powder metallurgical multi phase γ-TiAl based alloy
In: Intermetallics 22 (2012), S. 231-240
ISSN: 0966-9795
DOI: 10.1016/j.intermet.2011.11.015
Minshull JP., Neumeier S., Tucker MG., Stone HJ.:
A1-L1(2) structures in the Al-Co-Ni-Ti quaternary phase system
DOI: 10.4028/www.scientific.net/AMR.278.399
Göken M., Hemker KJ., Eberl C., Ma K., Schoenung JM., Funk M.:
High-temperature mechanical behavior of end-of-life cryomilled NiCrAlY bond coat materials
42 (2011), S. 2233-2241
ISSN: 1073-5623
DOI: 10.1007/s11661-011-0659-2
Klein L., Bauer A., Neumeier S., Göken M., Virtanen S.:
High temperature oxidation of γ/γ′-strengthened Co-base superalloys
In: Corrosion Science 53 (2011), S. 2027-2034
ISSN: 0010-938X
DOI: 10.1016/j.corsci.2011.02.033
Neumeier S, Ang J, Hobbs RA, Rae CMF, Stone HJ:
Lattice misfit of high refractory ruthenium containing nickel-base superalloys
In: Advanced Materials Research 278 (2011), S. 60-+
ISSN: 1022-6680
DOI: 10.4028/www.scientific.net/AMR.278.60
Neumeier S., Dinkel M., Pyczak F., Göken M.:
Nanoindentation and XRD investigations of single crystalline Ni-Ge brazed nickel-base superalloys PWA 1483 and René N5
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 528 (2011), S. 815-822
ISSN: 0921-5093
DOI: 10.1016/j.msea.2010.09.065
Heckl A., Neumeier S., Cenanovic S., Göken M., Singer R.:
Reasons for the enhanced phase stability of Ru-containing nickel-based superalloys
In: Acta Materialia 59 (2011), S. 6563-6573
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2011.07.002
Heckl A., Neumeier S., Göken M., Singer R.:
The effect of Re and Ru on γ/γ′ microstructure, γ-solid solution strengthening and creep strength in nickel-base superalloys
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 528 (2011), S. 3435-3444
ISSN: 0921-5093
DOI: 10.1016/j.msea.2011.01.023
Heckl A., Rettig R., Cenanovic S., Göken M., Singer R.:
Investigation of the final stages of solidification and eutectic phase formation in Re and Ru containing nickel-base superalloys
In: Journal of Crystal Growth 312 (2010), S. 2137-2144
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2010.03.041
Nikulina E., Durst K., Göken M., Voelkl R., Glatzel U.:
Microstructural and micromechanical characterisation of a Pt-Al-Cr-Ni-Re alloy by means of transmission electron microscopy and nanoindentation
In: International Journal of Materials Research 101 (2010), S. 585-588
ISSN: 1862-5282
DOI: 10.3139/146.110316
Göken M., Bauer A., Pyczak F., Neumeier S.:
Microstructure and creep strength of different γ/γ′- strengthened Co-base superalloy variants
63 (2010), S. 1197-1200
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2010.08.036
Pyczak F., Neumeier S., Göken M.:
Influence of lattice misfit on the internal stress and strain states before and after creep investigated in nickel-base superalloys containing rhenium and ruthenium
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 510-511 (2009), S. 295-300
ISSN: 0921-5093
DOI: 10.1016/j.msea.2008.08.052
Gebhard S., Pyczak F., Göken M.:
Microstructural and micromechanical characterisation of TiAl alloys using atomic force microscopy and nanoindentation
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 523 (2009), S. 235-241
ISSN: 0921-5093
DOI: 10.1016/j.msea.2009.05.068
Mughrabi H.:
Microstructural aspects of high temperature deformation of monocrystalline nickel base superalloys: Some open problems
In: Journal of Materials Science & Technology 25 (2009), S. 191-204
ISSN: 1005-0302
DOI: 10.1179/174328408X361436
Rettig R., Heckl A., Neumeier S., Pyczak F., Göken M., Singer R.:
Verification of a commercial CALPHAD database for Re and Ru containing nickel-base superalloys
In: Defect and Diffusion Forum 289-292 (2009), S. 101-108
ISSN: 1012-0386
DOI: 10.4028/www.scientific.net/DDF.289-292.101
Nützel R., Affeldt E., Göken M.:
Damage evolution during thermo-mechanical fatigue of a coated monocrystalline nickel-base superalloy
In: International Journal of Fatigue 30 (2008), S. 313-317
ISSN: 0142-1123
DOI: 10.1016/j.ijfatigue.2007.01.045
Heinz P., Volek A., Singer R., Dinkel M., Pyczak F., Göken M., Ott M., Affeldt E., Vossberg A.:
Diffusion brazing of single crystalline nickel base superalloys using boron free nickel base braze alloys
In: Defect and Diffusion Forum 273-276 (2008), S. 294-299
ISSN: 1012-0386
Dinkel M., Heinz P., Pyczak F., Volek A., Ott M., Affeldt E., Vossberg A., Göken M., Singer R.:
New boron and silicon free single crystal-diffusion brazing alloys
11th International Symposium on Superalloys, SUPERALLOYS 2008 (Seven Springs, 14. September 2008 - 18. September 2008)
In: R.C. Reed, K.A. Kenneth, P. Caron, T.P. Gabb, M.G. Fahrmann, E.S. Huron, S.A. Woodard (Hrsg.): Superalloys 2008: Proceedings of the 11th Intenational Symposium of Superalloys, Warrendale: 2008
DOI: 10.7449/2008/Superalloys_2008_211_220
Neumeier S., Pyczak F., Göken M.:
The influence of ruthenium and rhenium on the local properties of the γ- and γ′-phase in nickel-base superalloys and their consequences for alloy behavior
11th International Symposium on Superalloys, Superalloys 2008 (Champion, PA)
In: Proceedings of the International Symposium on Superalloys 2008
URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=60349117530∨igin=inward
Volek A., Pyczak F., Singer R., Mughrabi H.:
Partitioning of Re between γ and γ′ phase in nickel-base superalloys
In: Scripta Materialia 52 (2005), S. 141-145
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2004.09.013
Wöllmer S. , Zaefferer S., Göken Mathias, Glatzel U.:
Characterization of phases of aluminized nickel base superalloys
In: Surface & Coatings Technology 167 ( (2003), S. 83-96
ISSN: 0257-8972
DOI: 10.1016/S0257-8972(02)00843-5
Bürgel R., Grossmann J., Lüsebrink O., Mughrabi H., Pyczak F., Singer R., Volek A.:
Development of a new alloy for directional solidification of large industrial gas turbine blades
SUPERALLOYS 2004 - Tenth International Symposium on Superalloys (Champion, PA)
Göken M., Durst K.:
Micromechanical characterisation of the influence of rhenium on the mechanical properties in nickel-base superalloys
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 387-389 (2004), S. 312-316
ISSN: 0921-5093
DOI: 10.1016/j.msea.2004.03.079
Durst Karsten, Franke Oliver, Höppel Heinz Werner, Affeldt Ernst, Göken Mathias:
Mikrostruktur und lokale mechanische Eigenschaften von platinmodifizierten Aluminidschichten auf Nickelbasis-Superlegierungen nach thermomechanischer Ermüdung
Metallographietagung 2004 (Bochum)
In: Prakt. Met. Sonderband 36, Frankfurt: 2004
Durst K., Göken M., Franke O.:
Nanoindentations as a local probe fort he mechanical properties and alloying influences in nickel-base superalloys and aluminide coatings
Superalloys 2004 (Sevenssprings)
In: Superalloys 2004, Warrendale: 2004
Pyczak F., Biermann H., Mughrabi H., Volek A., Singer R.:
CBED-Measurement of Residual Internal Strains in the Neighbourhood of TCP-Phases in Ni-Base Superalloys
9th International Symposium on Superalloys, SUPERALLOYS 2000 (Seven Springs, 17. September 2000 - 21. September 2000)
In: K. Green, T. M. Pollock, R. Kissinger, R.R. Bowman, K.A. Green, M. McLean, S. Olson, J.J. Schirra (Hrsg.): Superalloys 2000: Proceedings of the 9th Intenational Symposium of Superalloys 2000
Volz N., Xue F., Zenk C., Bezold A., Gabel S., Subramanyam AP., Drautz R., Hammerschmidt T., Makineni SK., Gault B., Göken M., Neumeier S.:
Understanding creep of a single-crystalline Co-Al-W-Ta superalloy by studying the deformation mechanism, segregation tendency and stacking fault energy
In: Acta Materialia 214 (2021), S. 117019
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2021.117019
Hausmann D., Förner A., Pröbstle M., Huenert D., Felfer P., Göken M., Neumeier S.:
Correlation Between Local Chemical Composition and Formation of Different Types of Ordered Phases in the Polycrystalline Nickel-Base Superalloy A718Plus
In: Advanced Engineering Materials (2021)
ISSN: 1438-1656
DOI: 10.1002/adem.202100558
Morgado FF., Katnagallu S., Freysoldt C., Klaes B., Vurpillot F., Neugebauer J., Raabe D., Neumeier S., Gault B., Stephenson LT.:
Revealing atomic-scale vacancy-solute interaction in nickel
In: Scripta Materialia 203 (2021), Art.Nr.: 114036
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2021.114036
Morgado FF., Katnagallu S., Freysoldt C., Klaes B., Vurpillot F., Neugebauer J., Raabe D., Neumeier S., Gault B., Stephenson LT.:
Corrigendum to Revealing atomic-scale vacancy-solute interaction in nickel(Scripta Materialia (2021) 203, (114036) (S135964622100316X), (10.1016/j.scriptamat.2021.114036))
In: Scripta Materialia 205 (2021), Art.Nr.: 114213
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2021.114213
Kümmel F., Kirchmayer A., Solís C., Hofmann M., Neumeier S., Gilles R.:
Deformation mechanisms in Ni-based superalloys at room and elevated temperatures studied by in Situ neutron diffraction and electron microscopy
In: Metals 11 (2021), Art.Nr.: 719
ISSN: 2075-4701
DOI: 10.3390/met11050719
Volz N., Xue F., Bezold A., Zenk C., Fries SG., Schreuer J., Neumeier S., Göken M.:
Design of a Co–Al–W–Ta Alloy Series with Varying γ′ Volume Fraction and Their Thermophysical Properties
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2021)
ISSN: 1073-5623
DOI: 10.1007/s11661-021-06353-y
Liang Z., Göken M., Lorenz U., Neumeier S., Oehring M., Pyczak F., Stark A., Wang L.:
Influence of small amounts of Si and Cr on the high temperature oxidation behavior of novel cobalt base superalloys
In: Corrosion Science 184 (2021), Art.Nr.: 109388
ISSN: 0010-938X
DOI: 10.1016/j.corsci.2021.109388
Neumeier S., Bresler J., Zenk C., Haußmann L., Stark A., Pyczak F., Göken M.:
Partitioning Behavior of Nb, Ta, and Zr in Fully Lamellar gamma/alpha(2) Titanium Aluminides and Its Effect on the Lattice Misfit and Creep Behavior
In: Advanced Engineering Materials (2021)
ISSN: 1438-1656
DOI: 10.1002/adem.202100156
Diepold B., Palm MS., Wimmer A., Sebald T., Höppel HW., Neumeier S., Göken M.:
Rotating Scan Strategy Induced Anisotropic Microstructural and Mechanical Behavior of Selective Laser Melted Materials and Their Reduction by Heat Treatments
In: Advanced Engineering Materials (2021)
ISSN: 1438-1656
DOI: 10.1002/adem.202100622
Diepold B., Neumeier S., Meermeier A., Höppel HW., Sebald T., Göken M.:
Temperature-Dependent Dynamic Strain Aging in Selective Laser Melted 316L
In: Advanced Engineering Materials (2021)
ISSN: 1438-1656
DOI: 10.1002/adem.202001501
Neumeier S., Pyczak F., Göken M.:
The temperature dependent lattice misfit of rhenium and ruthenium containing nickel-base superalloys – Experiment and modelling
In: Materials and Design 198 (2021), Art.Nr.: 109362
ISSN: 0261-3069
DOI: 10.1016/j.matdes.2020.109362
Bezold A., Volz N., Lenz M., Zenk C., Spiecker E., Mills MJ., Göken M., Neumeier S.:
Yielding behavior of a single-crystalline γ'-strengthened Co-Ti-Cr superalloy
In: Scripta Materialia 200 (2021), S. 113928
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2021.113928
Zenk C., Povstugar I., Li R., Rinaldi F., Neumeier S., Raabe D., Göken M.:
A novel type of Co-Ti-Cr-base γ/γ′ superalloys with low mass density
In: Acta Materialia 135 (2017), S. 244-251
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2017.06.024
Neumeier S., Pyczaky F., Göken M.:
Influence of rhenium and ruthenium on the local mechanical properties of the c and c0 phases in nickel-base superalloys
In: Philosophical Magazine 91 (2011), S. 4187-4199
ISSN: 0031-8086
DOI: 10.1080/14786435.2011.607139
Bauer A., Neumeier S., Pyczak F., Göken M.:
Microstructure and creep strength of different γ/γ′-strengthened Co-base superalloy variants
In: Scripta Materialia 63 (2010), S. 1197-1200
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2010.08.036
Christ HJ., Künecke U., Meyer K., Sockel HG.:
Mechanisms of high-temperature corrosion in helium containing small amounts of impurities. II. Corrosion of the nickel-base alloy inconel 617
In: Oxidation of Metals 30 (1988), S. 27-51
ISSN: 0030-770X
DOI: 10.1007/BF00656643
Christ HJ., Künecke U., Meyer K., Sockel HG.:
High temperature corrosion of the nickel-based alloy Inconel 617 in helium containing small amounts of impurities
In: Materials Science and Engineering 87 (1987), S. 161-168
ISSN: 0025-5416
DOI: 10.1016/0025-5416(87)90374-0
Bezold A., Volz N., Xue F., Neumeier S., Göken M.:
Anomalous Work Hardening Behavior of a Single Crystalline Co-Base Superalloy
In: Alloys 1 (2022), S. 243-253-253
ISSN: 2674-063X
DOI: 10.3390/alloys1030015
Palm MS., Diepold B., Neumeier S., Höppel HW., Göken M., Zaeh MF.:
Detection and effects of lack of fusion defects in Hastelloy X manufactured by laser powder bed fusion
In: Materials & Design 230 (2023), Art.Nr.: 111941
ISSN: 0264-1275
DOI: 10.1016/j.matdes.2023.111941
Köbrich M., Förner A., Volz N., Zenk C., Fries SG., Göken M., Neumeier S.:
Influence of refractory and platinum group metals on the microstructure and thermo-physical properties of Co-Al-W-based superalloys
In: Journal of Alloys and Compounds 947 (2023), Art.Nr.: 169542
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2023.169542
Neumeier S., Freund L., Bezold A., Köbrich M., Vollhüter J., Hausmann D., Solis C., Stark A., Schell N., Pyczak F., Felfer P., Gilles R., Göken M.:
Advanced Polycrystalline γ′-Strengthened CoNiCr-Based Superalloys
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2024)
ISSN: 1073-5623
DOI: 10.1007/s11661-024-07319-6
Gabel S., Giese S., Webler R., Neumeier S., Göken M.:
Microcantilever Fracture Tests of α-Cr Containing NiAl Bond Coats
In: Advanced Engineering Materials (2022)
ISSN: 1438-1656
DOI: 10.1002/adem.202101429
Wahlmann B., Bandorf J., Volz N., Förner A., Pröbstle J., Multerer K., Göken M., Markl M., Neumeier S., Körner C.:
Numerical Design of CoNi-Base Superalloys With Improved Casting Structure
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2022)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06870-4
Morales LA., Bezold A., Förner A., Holz H., Merle B., Neumeier S., Körner C., Zenk C.:
Influence of Cu Addition and Microstructural Configuration on the Creep Resistance and Mechanical Properties of an Fe-Based alpha/alpha '/alpha '' Superalloy
In: Advanced Engineering Materials (2023)
ISSN: 1438-1656
DOI: 10.1002/adem.202201652
Liang Z., Neumeier S., Rao Z., Göken M., Pyczak F.:
CALPHAD informed design of multicomponent CoNiCr-based superalloys exhibiting large lattice misfit and high yield stress
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 854 (2022), Art.Nr.: 143798
ISSN: 0921-5093
DOI: 10.1016/j.msea.2022.143798
Liang Z., Pyczak F., Stark A., Rao Z., Neumeier S., Göken M.:
Breaking the continuity of the Al2O3 oxide scale by additions of Cr in Co-Al-W-based superalloys
In: Corrosion Science 189 (2021), Art.Nr.: 109594
ISSN: 0010-938X
DOI: 10.1016/j.corsci.2021.109594
Förner A., Vollhüter J., Krapf A., Jamjoom AFA., Hausmann D., Wahlmann B., Fu Z., Körner C., Neumeier S., Göken M.:
Using Selective Electron Beam Melting to Enhance the High-Temperature Strength and Creep Resistance of NiAl–28Cr–6Mo In Situ Composites
In: Advanced Engineering Materials (2023)
ISSN: 1438-1656
DOI: 10.1002/adem.202300407
Bezold A., Vollhüter J., Karpstein N., Lenz M., Subramanyam AP., Zenk C., Hammerschmidt T., Spiecker E., Göken M., Neumeier S.:
Segregation-induced strength anomalies in complex single-crystalline superalloys
In: Communications Materials 5 (2024), Art.Nr.: 8
ISSN: 2662-4443
DOI: 10.1038/s43246-024-00447-x
Seynstahl A., Köbrich M., Rosnitschek T., Göken M., Tremmel S.:
Enhancing the lifetime and vacuum tribological performance of PVD-MoS2 coatings by nitrogen modification
In: Surface & Coatings Technology 477 (2024), Art.Nr.: 130343
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2023.130343
Xue F., Bezold A., Volz N., Kirchmayer A., Zenk C., Neumeier S., Göken M.:
Influence of the γ′ Volume Fraction on the High-Temperature Strength of Single Crystalline Co–Al–W–Ta Superalloys
In: Crystals 13 (2023), Art.Nr.: 1095
ISSN: 2073-4352
DOI: 10.3390/cryst13071095
Haußmann L., Burbaum B., Stöhr B., Förner A., Freund L., Göken M., Neumeier S.:
Crack-Free Welding of a Co-Base Superalloy with High γ' Precipitate Fraction
In: Advanced Engineering Materials 24 (2022), Art.Nr.: 2200609
ISSN: 1438-1656
DOI: 10.1002/adem.202200609
Kirchmayer A., Weiser M., Randelzhofer P., Freund L., Gehrmann B., Haghighat MH., Huenert D., Göken M., Neumeier S.:
Oxidation Behavior of the Polycrystalline Ni-Base Superalloy VDM® Alloy 780
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2023)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06956-z
Weiser M., Chater RJ., Shollock BA., Virtanen S.:
Transport mechanisms during the high-temperature oxidation of ternary γ/γ′ Co-base model alloys
In: npj Materials Degradation 3 (2019), S. 1-11
ISSN: 2397-2106
DOI: 10.1038/s41529-019-0096-z
Hausmann D., Freund L., Solis C., Giese S., Göken M., Gilles R., Neumeier S.:
Cracking during High-Temperature Deformation of a High-Strength Polycrystalline CoNi-Base Superalloy
In: Metals 12 (2022)
ISSN: 2075-4701
DOI: 10.3390/met12091520
Freund L., Stark A., Pyczak F., Schell N., Göken M., Neumeier S.:
The grain boundary pinning effect of the mu phase in an advanced polycrystalline γ/γ′ Co-base superalloy
In: Journal of Alloys and Compounds 753 (2018), S. 333-342
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2018.04.204
Bezold A., Stone HJ., Rae CMF., Neumeier S.:
In Situ Investigation of TCP Phase Formation, Stress Relaxation and gamma/gamma ' Lattice Misfit Evolution in Fourth Generation Single Crystal Ni-Base Superalloys by X-Ray High Temperature Diffraction
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2022)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06713-2
Solís C., Kirchmayer A., da Silva I., Kümmel F., Mühlbauer S., Beran P., Gehrmann B., Haghighat MH., Neumeier S., Gilles R.:
Monitoring the precipitation of the hardening phase in the new VDM® Alloy 780 by in-situ high-temperature small-angle neutron scattering, neutron diffraction and complementary microscopy techniques
In: Journal of Alloys and Compounds 928 (2022), Art.Nr.: 167203
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2022.167203
Kirchmayer A., Pröbstle M., Huenert D., Neumeier S., Göken M.:
Influence of Grain Size and Volume Fraction of η/δ Precipitates on the Dwell Fatigue Crack Propagation Rate and Creep Resistance of the Nickel-Base Superalloy ATI 718Plus
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2023)
ISSN: 1073-5623
DOI: 10.1007/s11661-023-07001-3
Kuczyk M., Zawischa M., Krülle T., Vollhüter J., Zeiler S., Leonhardt M., Kaspar J., Zimmer O., Göken M., Leyens C., Zimmermann M.:
In situ mechanical testing of hard yet tough high entropy nitride coatings deposited on compliant steel substrates
In: Thin Solid Films 787 (2023), Art.Nr.: 140137
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2023.140137
Luo N., Huber F., Ciftci N., Wahl L., Bezold A., Neumeier S., Uhlenwinkel V., Travitzky N., Schmidt M., Zenk C., Körner C.:
Laser powder bed fusion of FeCoBSiNb-Cu bulk metallic glass composites: Processing, microstructure and mechanical properties
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 849 (2022), Art.Nr.: 143405
ISSN: 0921-5093
DOI: 10.1016/j.msea.2022.143405
Haußmann L., Neumeier S., Bresler J., Keim S., Pyczak F., Göken M.:
Influence of Nb, Ta and Zr on the Interdiffusion Coefficients and Solid Solution Strengthening of γ-TiAl Single Phase Alloys
In: Metals 12 (2022), Art.Nr.: 752
ISSN: 2075-4701
DOI: 10.3390/met12050752
Vollhüter J., Bezold A., Karpstein N., Köbrich M., Spiecker E., Göken M., Neumeier S.:
Strain Rate-Dependent Anomalous Work Hardening of a Single-Crystalline CoNi-Base Superalloy
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2023)
ISSN: 1073-5623
DOI: 10.1007/s11661-023-06966-5
Yoo B., Jung C., Ryou K., Choi WS., Haußmann L., Yang S., Boll T., Neumeier S., Choi PP.:
Directed energy deposition of gamma/gamma' Co-Al-W superalloys
In: Additive Manufacturing 60 (2022)
ISSN: 2214-7810
DOI: 10.1016/j.addma.2022.103287
Förner A., Vollhüter J., Hausmann D., Arnold C., Felfer P., Neumeier S., Göken M.:
Nanostructuring of Nb-Si-Cr Alloys by Electron Beam Melting to Improve the Mechanical Properties and the Oxidation Behavior
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2021)
ISSN: 1073-5623
DOI: 10.1007/s11661-021-06516-x
Bezold A., Neumeier S.:
Tailoring deformation mechanisms in polycrystalline CoNi-base superalloys for enhanced high temperature strength
In: Scripta Materialia 226 (2023), Art.Nr.: 115250
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2022.115250
Bezold A., Volz N., Lenz M., Karpstein N., Zenk C., Spiecker E., Göken M., Neumeier S.:
Quantification of the temperature-dependent evolution of defect structures in a CoNi-base superalloy
In: Acta Materialia 227 (2022), Art.Nr.: 117702
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2022.117702
Karpstein N., Lenz M., Bezold A., Wu M., Neumeier S., Spiecker E.:
Reliable identification of the complex or superlattice nature of intrinsic and extrinsic stacking faults in the L12 phase by high-resolution imaging
In: Acta Materialia 260 (2023), Art.Nr.: 119284
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2023.119284
Schimmel S., Salamon M., Tomida D., Neumeier S., Ishiguro T., Honda Y., Chichibu SF., Amano H.:
High-Energy Computed Tomography as a Prospective Tool for In Situ Monitoring of Mass Transfer Processes inside High-Pressure Reactors-A Case Study on Ammonothermal Bulk Crystal Growth of Nitrides including GaN
In: Materials 15 (2022), S. 6165
ISSN: 1996-1944
DOI: 10.3390/ma15176165
Hagen S., Weiser M., Abu-Khousa B., Virtanen S.:
Influence of the Co/Ni Ratio and Dendritic Segregations on the High-Temperature Oxidation Resistance of Multinary Co-Rich Superalloys at 850 °C and 1050 °C
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2022)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06620-6
Pyczak F., Liang Z., Neumeier S., Rao Z.:
Stability and Physical Properties of the L1(2)-gamma ' Phase in the CoNiAlTi-System
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2023)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06949-y
Bezold A., Amon L., Karpstein N., Spiecker E., Göken M., Neumeier S.:
Recovery of superlattice stacking faults at high temperatures
In: Scripta Materialia 222 (2023), Art.Nr.: 115005
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2022.115005
Haußmann L., Yoo B., Jung C., Ryou K., Choi WS., Haußmann L., Yang S., Boll T., Neumeier S., Choi PP.:
Directed energy deposition of γ/γ' Co-Al-W superalloys
In: Additive Manufacturing 60C7 - 103287 (2022)
ISSN: 2214-7810
DOI: 10.1016/j.addma.2022.103287
Hagen S., Haußmann L., Wahlmann B., Gebhardt F., Abu-Khousa B., Weiser M., Neumeier S., Zenk C., Virtanen S.:
Influence of the W and Ta content on the High-Temperature Oxidation Resistance of Multinary Co/Ni-Based Superalloys at 1050 °C and 1150 °C
In: High Temperature Corrosion of Materials (2023)
ISSN: 2731-8397
DOI: 10.1007/s11085-023-10183-1
Volz N., Zenk C., Karpstein N., Lenz M., Spiecker E., Göken M., Neumeier S.:
Creep properties and deformation mechanisms of single-crystalline gamma '-strengthened superalloys in dependence of the Co/Ni ratio
In: Philosophical Magazine (2021)
ISSN: 1478-6435
DOI: 10.1080/14786435.2021.2017051
Bresler J., Neumeier S., Ziener M., Pyczak F., Göken M.:
The influence of niobium, tantalum and zirconium on the microstructure and creep strength of fully lamellar gamma/alpha(2) titanium aluminides
In: Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 744 (2019), S. 46-53
ISSN: 0921-5093
DOI: 10.1016/j.msea.2018.11.152
Liang Z., Paul JDH., Stark A., Bezold A., Neumeier S., Göken M., Pyczak F.:
High-Temperature CoNi-Based Superalloys Strengthened by γ′-(Ni,Co)3(Cr,Al,Ti,X): The Effect of Refractory Elements
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2022)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06795-y
Bezold A., Freund L., Förner A., Völkl J., Huber LK., Göken M., Neumeier S.:
Deformation Mechanisms in Compositionally Complex Polycrystalline CoNi-Base Superalloys: Influence of Temperature, Strain-Rate and Chemistry
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2022)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06912-x
Fritton M., Kümmel F., Kirchmayer A., Stark A., Hafez Haghighat M., Gehrmann B., Neumeier S., Gilles R.:
Investigation of the Hot Deformation Behavior in VDM® Alloy 780 by In Situ High-Energy X-Ray Diffraction
In: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science (2023)
ISSN: 1073-5623
DOI: 10.1007/s11661-022-06942-5