Dr.-Ing. Alexander Kauffmann
- Abteilungsleiter
- Physikalische Metallkunde
- Gruppe: PhM
- Sprechstunden: nach Vereinbarung
- Raum: 375 Geb. 10.91
- Tel.: +49 721 608 42346
- Fax: +49 721 608 48044
- alexander kauffmann ∂ kit edu
Karlsruher Institut für Technologie (KIT)
Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Campus Süd
Engelbert-Arnold-Straße 4
76131 KarlsruheGebäude 10.91
Hier finden Sie die Abteilung Physikalische Metallkunde.
Lebenslauf
seit 07.2016 | Leiter der Abteilung Physikalische Metallkunde |
seit 08.2014 | Abteilung Physikalische Metallkunde des Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK) des Karlsruher Institut für Technologie (KIT) |
09.2007 - 07.2014 | Abteilung Metallphysik am Institut für Metallische Werkstoffe des Leibniz-Instituts für Festkörper- und Werkstoffforschung Dresden (IFW Dresden) |
12.2009 - 05.2014 | Promotion an der Fakultät für Maschinenwesen der TU Dresden Dissertation: "Gefügeverfeinerung durch mechanische Zwillingsbildung in Kupfer und Kupfermischkristalllegierungen" |
10.2004 - 11.2009 | Studium Werkstoffwissenschaft an der TU Dresden Diplomarbeit: "Eisenpniktidsupraleiter in gepulsten Magnetfeldern bis μ0H = 50 T" (verfügbar auf Anfrage) |
Alexander Kauffmanns Publikationen können Sie anhand seines Google Scholar Accounts nachvollziehen.
Auszeichnungen
- Nachwuchspreis der Deutschen Gesellschaft für Materialkunde 2013
- Förderpreis des Deutsches Kupferinstituts 2014
- Tschirnhaus-Plakette des Leibniz-Instituts für Festkörper- und Werkstoffforschung Dresden e. V. 2014
- Postdoktoranden-Stipendium der Carl Zeiss Stiftung 2015-2017
- Certificate of Excellence in Reviewing by Acta and Scripta Materialia 2023
- Masing-Gedächtnispreis der Deutschen Gesellschaft für Materialkunde 2024
Lehre
- Werkstoffkunde I und II (Vorlesungsvertretung, Übung)
- Plasticity of Metals and Intermetallics (Vorlesung)
- Phase Transformations in Materials (Vorlesung)
- Werkstoffkunde III (Übung)
- Metalle (Vorlesungsvertretung, Übung; bis 2022)
- Materialwissenschaftliches Praktikum A (Organisation, Praktikumsversuche)
- Experimentelles metallographisches Praktikum (Organisation, Praktikumsversuche)
- Arbeitstechniken im Maschinenbau (Betreuung wissenschaftlicher Themen)
- Materialwissenschaftliches Seminar (Betreuung wissenschaftlicher Themen)
- Bachelor- und Masterarbeiten (intern sowie extern im Bereich der Physikalischen Metallkunde)
Veröffentlichungen am KIT
2025
Vikram, R. J.; Schliephake, D.; Namadi, M.; Choudhury, A.; Kauffmann, A.; Suwas, S.; Heilmaier, M. (2025). Strategic alloy design and processing for improved mechanical response in the Mo-Si-Ti system. Scripta Materialia, 255, Art.-Nr.: 116341. doi:10.1016/j.scriptamat.2024.116341
2024
Poulain, R.; Rajkowski, M.; Zhao, Y.; Gemagami, P.; Appolaire, B.; Laube, S.; Kauffmann, A.; Perrière, L.; Couzinié, J.-P.; Li, T.; Laplanche, G. (2024). Oxygen-induced decomposition of the body-centered cubic HfNbTaTiZr high-entropy alloy. Acta Materialia, 280, 120295. doi:10.1016/j.actamat.2024.120295
Drescher, S.; Seils, S.; Boll, T.; Kauffmann, A.; Heilmaier, M.; Freudenberger, J. (2024). Solid solution strengthening in single-phase Au-Cu-Ni-Pd-Pt-based high-entropy alloys. Journal of Alloys and Compounds, 1002, Artkl.Nr.: 175273. doi:10.1016/j.jallcom.2024.175273
Schliephake, D.; Thota, H.; Kauffmann, A.; Wu, H.; Pundt, A.; Heilmaier, M.; Eggeler, Y. M. (2024). The Creep‐induced Micro‐ and Nanostructural Evolution of a Eutectic Mo‐Si‐Ti Alloy at 1200 °C. Advanced Engineering Materials, 26 (17). doi:10.1002/adem.202301909
Vikram, R. J.; Aramanda, S. K.; Schliephake, D.; Kauffmann, A.; Choudhury, A.; Heilmaier, M.; Suwas, S. (2024). Unveiling the Intricacies of a Ductile‐Phase Toughened Intermetallic: An In‐depth Exploration of a Eutectic Mo‐Si‐Ti Alloy and its Mechanical Behavior. Advanced Engineering Materials, 26 (17). doi:10.1002/adem.202301843
Wang, J.; Basu, S.; Kauffmann, A.; Heilmaier, M.; Schwaiger, R. (2024). The effect of grain boundaries and precipitates on the mechanical behavior of the refractory compositionally complex alloy NbMoCrTiAl. Applied Physics Letters, 124 (20), Art.-Nr.: 201905. doi:10.1063/5.0203536
Nizamoglu, S.; Gedsun, A.; Kauffmann, A.; Ghosh, M.; Michels, H.; Groten, T.; Schulz, C.; Breuner, C.; Seils, S.; Schliephake, D.; Laube, S.; Palm, M.; Heilmaier, M. (2024). Microstructure and mechanical properties of a precipitation‐strengthened Fe‐Al‐Nb alloy. Advanced Engineering Materials, 26 (4). doi:10.1002/adem.202300148
Laube, S.; Winkens, G.; Kauffmann, A.; Li, J.; Kirchlechner, C.; Heilmaier, M. (2024). Strength of Disordered and Ordered Al‐containing Refractory High Entropy Alloys. Advanced Engineering Materials. doi:10.1002/adem.202301797
Dollmann, A.; Kübel, C.; Tavakkoli, V.; Eder, S. J.; Feuerbacher, M.; Liening, T.; Kauffmann, A.; Rau, J.; Greiner, C. (2024). Deformation twins as a probe for tribologically induced stress states. Communications Materials, 5 (1), Art.-Nr.: 4. doi:10.1038/s43246-023-00442-8
2023
Charpentier, L.; Kauffmann, A.; Bêche, E.; Escape, C.; Laube, S.; Schliephake, D.; Esvan, J.; Gorr, B.; Soum-Glaude, A.; Heilmaier, M. (2023). Influence of the oxidation on the optical properties of Mo-Si-Ti, Ta-Mo-Cr-Al and Ta-Mo-Cr-Ti-Al alloys. Materials Today Communications, 37, Art.-Nr.: 107056. doi:10.1016/j.mtcomm.2023.107056
Dollmann, A.; Rau, J. S.; Bieber, B.; Mantha, L.; Kübel, C.; Kauffmann, A.; Tirunilai, A. S.; Heilmaier, M.; Greiner, C. (2023). Temporal sequence of deformation twinning in CoCrNi under tribological load. Scripta Materialia, 229, Art.-Nr.: 115378. doi:10.1016/j.scriptamat.2023.115378
Schellert, S.; Weber, M.; Christ, H. J.; Wiktor, C.; Butz, B.; Galetz, M. C.; Laube, S.; Kauffmann, A.; Heilmaier, M.; Gorr, B. (2023). Formation of rutile (Cr,Ta,Ti)O₂ oxides during oxidation of refractory high entropy alloys in Ta-Mo-Cr-Ti-Al system. Corrosion Science, 211, Art.Nr. 110885. doi:10.1016/j.corsci.2022.110885
Dyck, A.; Wicht, D.; Kauffmann, A.; Heilmaier, M.; Böhlke, T. (2023). Revisiting analytic shear-lag models for predicting creep in composite materials. Scripta Materialia, 224, Article no: 115142. doi:10.1016/j.scriptamat.2022.115142
Drescher, S.; Seils, S.; Pohl, D.; Rellinghaus, B.; Kauffmann, A.; Heilmaier, M.; Freudenberger, J. (2023). Softening by spinodal decomposition in Au–Cu–Ni–Pd–Pt high-entropy alloys. Materials Science and Engineering: A, 887, Art.-Nr.: 145772. doi:10.1016/j.msea.2023.145772
Kellner, M.; Schulz, C.; Kauffmann, A.; Heilmaier, M.; Nestler, B. (2023). Phase-Field Simulation of the Microstructure Evolution in the Eutectic Alloy NiAl-31Cr-3Mo. Crystals, 13 (7), Article no: 1046. doi:10.3390/cryst13071046
Winkens, G.; Kauffmann, A.; Herrmann, J.; Czerny, A. K.; Obert, S.; Seils, S.; Boll, T.; Baruffi, C.; Rao, Y.; Curtin, W. A.; Schwaiger, R.; Heilmaier, M. (2023). The influence of lattice misfit on screw and edge dislocation-controlled solid solution strengthening in Mo-Ti alloys. Communications Materials, 4 (1), 26. doi:10.1038/s43246-023-00353-8
Eusterholz, M. K.; Boll, T.; Ott, V.; Stüber, M.; Lu, Y.; Gebauer, J.; Ulrich, S.; Kauffmann, A.; Heilmaier, M. (2023). Nanoscale oxide formation at α‐Al₂O₃–Nb interfaces. Advanced Engineering Materials, 25 (14), Art.-Nr.: 2201441. doi:10.1002/adem.202201441
Tirunilai, A. S.; Osmundsen, R.; Baker, I.; Chen, H.; Weiss, K.-P.; Heilmaier, M.; Kauffmann, A. (2023). Simultaneous Twinning and Microband-Induced Plasticity of a Compositionally Complex Alloy with Interstitial Carbon at Cryogenic Temperatures. High Entropy Alloys & Materials, 1, 60–71. doi:10.1007/s44210-022-00001-9
2022
Schliephake, D.; Lopes, C.; Eggeler, Y. M.; Chen, H.; Freudenberger, J.; Bayoumy, D.; Huang, A. J.; Kauffmann, A. (2022). Improved work hardening capability and ductility of an additively manufactured and deformed Al-Mn-Mg-Sc-Zr alloy. Journal of Alloys and Compounds, 924, Artkl.Nr.: 166499. doi:10.1016/j.jallcom.2022.166499
Freudenberger, J.; Thiel, F.; Utt, D.; Albe, K.; Kauffmann, A.; Seils, S.; Heilmaier, M. (2022). Solid solution strengthening in medium- to high-entropy alloys. Materials Science and Engineering: A, 861, 144271. doi:10.1016/j.msea.2022.144271
Tirunilai, A. S.; Hinrichs, F.; Schliephake, D.; Engstler, M.; Mücklich, F.; Obert, S.; Winkens, G.; Kauffmann, A.; Heilmaier, M. (2022). Phase continuity, brittle to ductile transition temperature and creep behavior of a eutectic Mo‐20Si‐52.8Ti alloy. Advanced Engineering Materials, 24 (11), Art.Nr. 2200918. doi:10.1002/adem.202200918
Hinrichs, F.; Kauffmann, A.; Tirunilai, A. S.; Schliephake, D.; Beichert, B.; Winkens, G.; Beck, K.; Ulrich, A. S.; Galetz, M. C.; Long, Z.; Thota, H.; Eggeler, Y.; Pundt, A.; Heilmaier, M. (2022). A novel nitridation- and pesting-resistant Cr-Si-Mo alloy. Corrosion Science, 207, Art.-Nr.: 110566. doi:10.1016/j.corsci.2022.110566
Wicht, D.; Kauffmann, A.; Schneider, M.; Heilmaier, M.; Böhlke, T. (2022). On the impact of the mesostructure on the creep response of cellular NiAl-Mo eutectics. Acta materialia, 226, Art.-Nr. 117626. doi:10.1016/j.actamat.2022.117626
Lu, K.; Chauhan, A.; Litvinov, D.; Tirunilai, A. S.; Freudenberger, J.; Kauffmann, A.; Heilmaier, M.; Aktaa, J. (2022). Micro-mechanical deformation behavior of CoCrFeMnNi high-entropy alloy. Journal of materials science & technology, 100, 237–245. doi:10.1016/j.jmst.2021.04.079
Schliephake, D.; Bayoumy, D.; Seils, S.; Schulz, C.; Kauffmann, A.; Wu, X.; Huang, A. J. (2022). Mechanical behavior at elevated temperatures of an Al–Mn–Mg–Sc–Zr alloy manufactured by selective laser melting. Materials science and engineering / A, 831, Art.-Nr.: 142032. doi:10.1016/j.msea.2021.142032
Laube, S.; Kauffmann, A.; Schellert, S.; Seils, S.; Tirunilai, A. S.; Greiner, C.; Eggeler, Y. M.; Gorr, B.; Christ, H.-J.; Heilmaier, M. (2022). Formation and thermal stability of two-phase microstructures in Al-containing refractory compositionally complex alloys. Science and Technology of Advanced Materials, 23 (1), 692–706. doi:10.1080/14686996.2022.2132118
Dollmann, A.; Kauffmann, A.; Heilmaier, M.; Srinivasan Tirunilai, A.; Mantha, L. S.; Kübel, C.; Eder, S. J.; Schneider, J.; Greiner, C. (2022). Dislocation-mediated and twinning-induced plasticity of CoCrFeMnNi in varying tribological loading scenarios. Journal of Materials Science, 57, 17448–17461. doi:10.1007/s10853-022-07661-3
Eusterholz, M. K.; Boll, T.; Gebauer, J.; Weidner, A.; Kauffmann, A.; Franke, P.; Seifert, H.-J.; Biermann, H.; Aneziris, C.; Heilmaier, M. (2022). High‐temperature ternary oxide phases in Ta/Nb‐Alumina composite materials. Advanced Engineering Materials, 24 (8), Art.-Nr.: 2200161. doi:10.1002/adem.202200161
Schulz, C.; Kauffmann, A.; Laube, S.; Kellner, M.; Nestler, B.; Heilmaier, M. (2022). Role of orientation relationship for the formation of morphology and preferred orientation in NiAl-(Cr,Mo) during directional solidification. Acta Materialia, 231, Art.Nr. 117857. doi:10.1016/j.actamat.2022.117857
Tirunilai, A. S.; Weiss, K.-P.; Freudenberger, J.; Heilmaier, M.; Kauffmann, A. (2022). Revealing the Role of Cross Slip for Serrated Plastic Deformation in Concentrated Solid Solutions at Cryogenic Temperatures. Metals, 12 (3), 514. doi:10.3390/met12030514
2021
Thota, H.; Jeyaraam, R.; Bairi, L. R.; Tirunilai, A. S.; Kauffmann, A.; Freudenberger, J.; Heilmaier, M.; Mandal, S.; Vadlamani, S. S. (2021). Grain boundary engineering and its implications on corrosion behaviour of equiatomic CoCrFeMnNi high entropy alloy. Journal of alloys and compounds, 888, Art.-Nr.: 161500. doi:10.1016/j.jallcom.2021.161500
Seils, S.; Kauffmann, A.; Delis, W.; Boll, T.; Heilmaier, M. (2021). Microstructure and mechanical properties of high-Mn-ODS steels. Materials science and engineering / A, 825, Art.-Nr. 141859. doi:10.1016/j.msea.2021.141859
Schellert, S.; Gorr, B.; Laube, S.; Kauffmann, A.; Heilmaier, M.; Christ, H. J. (2021). Oxidation mechanism of refractory high entropy alloys Ta-Mo-Cr-Ti-Al with varying Ta content. Corrosion science, 192, Article no: 109861. doi:10.1016/j.corsci.2021.109861
Hatakeyama, T.; Kauffmann, A.; Obert, S.; Gombola, C.; Heilmaier, M.; Yoshimi, K. (2021). Oxidation Resistance, Creep Strength and Room-Temperature Fracture Toughness of Mo–28Ti–14Si–6C–6B Alloy. Materialia, 16, Art.Nr. 101108. doi:10.1016/j.mtla.2021.101108
Seitz, M.; Dürrschnabel, M.; Kauffmann, A.; Kurpiers, C.; Greiner, C.; Weidenmann, K. A. (2021). Characterization of the Microstructure After Composite Peening of Aluminum. Advanced engineering materials, 23 (2), Art.Nr. 2000575. doi:10.1002/adem.202000575
Hinrichs, F.; Kauffmann, A.; Schliephake, D.; Seils, S.; Obert, S.; Ratschbacher, K.; Allen, M.; Pundt, A.; Heilmaier, M. (2021). Flexible Powder Production for Additive Manufacturing of Refractory Metal-Based Alloys. Metals, 11 (11), Article no: 1723. doi:10.3390/met11111723
Laube, S.; Schellert, S.; Srinivasan Tirunilai, A.; Schliephake, D.; Gorr, B.; Christ, H.-J.; Kauffmann, A.; Heilmaier, M. (2021). Microstructure tailoring of Al-containing compositionally complex alloys by controlling the sequence of precipitation and ordering. Acta Materialia, 218, Article no: 117217. doi:10.1016/j.actamat.2021.117217
Klumpp, A.; Kauffmann, A.; Seils, S.; Dietrich, S.; Schulze, V. (2021). Influence of Cold Rotary Swaging on Microstructure and Uniaxial Mechanical Behavior in Alloy 718. Metallurgical and materials transactions / A, 52, 4331–4341. doi:10.1007/s11661-021-06371-w
Schellert, S.; Gorr, B.; Christ, H.-J.; Pritzel, C.; Laube, S.; Kauffmann, A.; Heilmaier, M. (2021). The Effect of Al on the Formation of a CrTaO₄ Layer in Refractory High Entropy Alloys Ta-Mo-Cr-Ti-xAl. Oxidation of metals, 96, 333–345. doi:10.1007/s11085-021-10046-7
Lu, K.; Chauhan, A.; Tirunilai, A. S.; Freudenberger, J.; Kauffmann, A.; Heilmaier, M.; Aktaa, J. (2021). Deformation mechanisms of CoCrFeMnNi high-entropy alloy under low-cycle-fatigue loading. Acta materialia, 215, Art.-Nr.: 117089. doi:10.1016/j.actamat.2021.117089
Gorr, B.; Schellert, S.; Müller, F.; Christ, H.-J.; Kauffmann, A.; Heilmaier, M. (2021). Current Status of Research on the Oxidation Behavior of Refractory High Entropy Alloys. Advanced engineering materials, 23 (5), Art.-Nr.: 2001047. doi:10.1002/adem.202001047
Chen, H.; Hanemann, T.; Seils, S.; Schliephake, D.; Tirunilai, A. S.; Heilmaier, M.; Weiss, K.-P.; Kauffmann, A. (2021). Influence of Temperature and Plastic Strain on Deformation Mechanisms and Kink Band Formation in Homogenized HfNbTaTiZr. Crystals, 11 (2), 81. doi:10.3390/cryst11020081
Obert, S.; Kauffmann, A.; Pretzler, R.; Schliephake, D.; Hinrichs, F.; Heilmaier, M. (2021). The Creep and Oxidation Behaviour of Pesting-Resistant -Containing Eutectic-Eutectoid Mo-Si-Ti Alloys. Metals, 11 (1), Art.-Nr.: 169. doi:10.3390/met11010169
Lu, K.; Chauhan, A.; Walter, M.; Tirunilai, A. S.; Schneider, M.; Laplanche, G.; Freudenberger, J.; Kauffmann, A.; Heilmaier, M.; Aktaa, J. (2021). Superior low-cycle fatigue properties of CoCrNi compared to CoCrFeMnNi. Scripta materialia, 194, Art.-Nr.: 113667. doi:10.1016/j.scriptamat.2020.113667
Obert, S.; Kauffmann, A.; Seils, S.; Boll, T.; Kauffmann-Weiss, S.; Chen, H.; Anton, R.; Heilmaier, M. (2021). Microstructural and Chemical Constitution of the Oxide Scale formed on a Pesting-Resistant Mo-Si-Ti Alloy. Corrosion science, 178, Art.-Nr. 109081. doi:10.1016/j.corsci.2020.109081
2020
Thiel, F.; Geissler, D.; Nielsch, K.; Kauffmann, A.; Seils, S.; Heilmaier, M.; Utt, D.; Albe, K.; Motylenko, M.; Rafaja, D.; Freudenberger, J. (2020). Origins of strength and plasticity in the precious metal based High-Entropy Alloy AuCuNiPdPt. Acta materialia, 185, 400–411. doi:10.1016/j.actamat.2019.12.020
Müller, F.; Gorr, B.; Christ, H.-J.; Chen, H.; Kauffmann, A.; Laube, S.; Heilmaier, M. (2020). Formation of complex intermetallic phases in novel refractory high-entropy alloys NbMoCrTiAl and TaMoCrTiAl: Thermodynamic assessment and experimental validation. Journal of alloys and compounds, 842, Article no: 155726. doi:10.1016/j.jallcom.2020.155726
Tirunilai, A. S.; Hanemann, T.; Weiss, K.-P.; Freudenberger, J.; Heilmaier, M.; Kauffmann, A. (2020). Dislocation-based Serrated Plastic Flow of High Entropy Alloys at Cryogenic Temperatures. Acta materialia, 200, 980–991. doi:10.1016/j.actamat.2020.09.052
Gombola, C.; Hasemann, G.; Kauffmann, A.; Sprenger, I.; Laube, S.; Schmitt, A.; Gang, F.; Bolbut, V.; Oehring, M.; Blankenburg, M.; Schell, N.; Staron, P.; Pyczak, F.; Krüger, M.; Heilmaier, M. (2020). A zone melting device for the in situ observation of directional solidification using high-energy synchrotron x rays editors-pick. Review of scientific instruments, 91 (9), Art.Nr. 093901. doi:10.1063/5.0019020
Müller, F.; Gorr, B.; Christ, H.-J.; Chen, H.; Kauffmann, A.; Heilmaier, M. (2020). Effect of Y Additions on the Oxidation Behaviour of Novel Refractory High-Entropy Alloy NbMoCrTiAl at 1000 °C in Air. Oxidation of metals, 94 (1-2), 147–163. doi:10.1007/s11085-020-09983-6
Lu, K.; Chauhan, A.; Litvinov, D.; Walter, M.; Tirunilai, A. S.; Freudenberger, J.; Kauffmann, A.; Heilmaier, M.; Aktaa, J. (2020). High-temperature low cycle fatigue behavior of an equiatomic CoCrFeMnNi high-entropy alloy. Materials science and engineering / A, 791, Article: 139781. doi:10.1016/j.msea.2020.139781
Thiel, F.; Utt, D.; Kauffmann, A.; Nielsch, K.; Albe, K.; Heilmaier, M.; Freudenberger, J. (2020). Breakdown of Varvenne scaling in (AuNiPdPt) Cu high-entropy alloys. Scripta materialia, 181, 15–18. doi:10.1016/j.scriptamat.2020.02.007
Seils, S.; Kauffmann, A.; Hinrichs, F.; Schliephake, D.; Boll, T.; Heilmaier, M. (2020). Temperature dependent strengthening contributions in austenitic and ferritic ODS steels. Materials science and engineering / A, 786, Article: 139452. doi:10.1016/j.msea.2020.139452
Laube, S.; Kauffmann, A.; Ruebeling, F.; Freudenberger, J.; Heilmaier, M.; Greiner, C. (2020). Solid solution strengthening and deformation behavior of single-phase Cu-base alloys under tribological load. Acta materialia, 185, 300–308. doi:10.1016/j.actamat.2019.12.005
Obert, S.; Kauffmann, A.; Heilmaier, M. (2020). Characterisation of the oxidation and creep behaviour of novel Mo-Si-Ti alloys. Acta materialia, 184, 132–142. doi:10.1016/j.actamat.2019.11.045
Gombola, C.; Kauffmann, A.; Geramifard, G.; Blankenburg, M.; Heilmaier, M. (2020). Microstructural Investigations of Novel High Temperature Alloys Based on NiAl-(Cr,Mo). Metals, 10 (7), Art. Nr.: 961. doi:10.3390/met10070961
Obert, S.; Kauffmann, A.; Seils, S.; Schellert, S.; Weber, M.; Gorr, B.; Christ, H.-J.; Heilmaier, M. (2020). On the chemical and microstructural requirements for the pesting-resistance of Mo-Si-Ti alloys. Journal of materials research and technology, 9 (4), 8556–8567. doi:10.1016/j.jmrt.2020.06.002
Dollmann, A.; Kauffmann, A.; Heilmaier, M.; Haug, C.; Greiner, C. (2020). Microstructural changes in CoCrFeMnNi under mild tribological load. Journal of materials science, 55 (26), 12353–12372. doi:10.1007/s10853-020-04806-0
Weber, M.; Gorr, B.; Christ, H.-J.; Obert, S.; Kauffmann, A.; Heilmaier, M. (2020). Effect of Water Vapor on the Oxidation Behavior of the Eutectic High‐Temperature Alloy Mo‐20Si‐52.8Ti. Advanced engineering materials, 22 (7), Art. Nr.: 2000219. doi:10.1002/adem.202000219
Tirunilai, A. S.; Hanemann, T.; Reinhart, C.; Tschan, V.; Weiss, K.-P.; Laplanche, G.; Freudenberger, J.; Heilmaier, M.; Kauffmann, A. (2020). Comparison of cryogenic deformation of the concentrated solid solutions CoCrFeMnNi, CoCrNi and CoNi. Materials science and engineering / A, 783, Art. Nr.: 139290. doi:10.1016/j.msea.2020.139290
Gorr, B.; Müller, F.; Schellert, S.; Christ, H.-J.; Chen, H.; Kauffmann, A.; Heilmaier, M. (2020). A new strategy to intrinsically protect refractory metal based alloys at ultra high temperatures. Corrosion science, 166, Art. Nr.: 108475. doi:10.1016/j.corsci.2020.108475
Laube, S.; Chen, H.; Kauffmann, A.; Schellert, S.; Müller, F.; Gorr, B.; Müller, J.; Butz, B.; Christ, H.-J.; Heilmaier, M. (2020). Controlling crystallographic ordering in Mo–Cr–Ti–Al high entropy alloys to enhance ductility. Journal of alloys and compounds, 823, Article No.153805. doi:10.1016/j.jallcom.2020.153805
2019
Chen, H.; Kauffmann, A.; Seils, S.; Boll, T.; Liebscher, C. H.; Harding, I.; Kumar, K. S.; Szabo, D. V.; Schlabach, S.; Kauffmann-Weiss, S.; Müller, F.; Gorr, B.; Christ, H.-J.; Heilmaier, M. (2019). Crystallographic ordering in a series of Al-containing refractory high entropy alloys Ta-Nb-Mo-Cr-Ti-Al. Acta materialia, 176, 123–133. doi:10.1016/j.actamat.2019.07.001
Müller, F.; Gorr, B.; Christ, H.-J.; Müller, J.; Butz, B.; Chen, H.; Kauffmann, A.; Heilmaier, M. (2019). On the oxidation mechanism of refractory high entropy alloys. Corrosion science, 159, Article: 108161. doi:10.1016/j.corsci.2019.108161
Schmitt, A.; Kumar, K. S.; Kauffmann, A.; Heilmaier, M. (2019). Microstructural evolution during creep of lamellar eutectoid and off-eutectoid FeAl/FeAl2 alloys. Intermetallics, 107, 116–125. doi:10.1016/j.intermet.2019.01.015
Schliephake, D.; Kauffmann, A.; Cong, X.; Gombola, C.; Azim, M.; Gorr, B.; Christ, H.-J.; Heilmaier, M. (2019). Constitution, oxidation and creep of eutectic and eutectoid Mo-Si-Ti alloys. Intermetallics, 104, 133–142. doi:10.1016/j.intermet.2018.10.028
2018
Chen, H.; Kauffmann, A.; Laube, S.; Choi, I.-C.; Schwaiger, R.; Huang, Y.; Lichtenberg, K.; Müller, F.; Gorr, B.; Christ, H.-J.; Heilmaier, M. (2018). Contribution of Lattice Distortion to Solid Solution Strengthening in a Series of Refractory High Entropy Alloys. Metallurgical and materials transactions / A, 49 (3), 772–781. doi:10.1007/s11661-017-4386-1
Gang, F.; Kauffmann, A.; Heilmaier, M. (2018). Phase Evolution in and Creep Properties of Nb-Rich Nb-Si-Cr Eutectics. Metallurgical and materials transactions / A, 49 (3), 763–771. doi:10.1007/s11661-017-4367-4
Gorr, B.; Mueller, F.; Christ, H.-J.; Chen, H.; Kauffmann, A.; Schweiger, R.; Szabo, D. V.; Heilmaier, M. (2018). Development of Oxidation Resistant Refractory High Entropy Alloys for High Temperature Applications: Recent Results and Development Strategy. TMS 2018. 147th Annual Meeting & Exhibition Supplemental Proceedings (TMS), 647–659, Springer. doi:10.1007/978-3-319-72526-0_61
Tirunilai, A. S.; Sas, J.; Weiss, K.-P.; Chen, H.; Szabo, D. V.; Schlabach, S.; Haas, S.; Geissler, D.; Freudenberger, J.; Heilmaier, M.; Kauffmann, A. (2018). Peculiarities of deformation of CoCrFeMnNi at cryogenic temperatures. Journal of materials research, 1–14. doi:10.1557/jmr.2018.252
2017
Hauf, U.; Kauffmann, A.; Kauffmann-Weiss, S.; Feilbach, A.; Boening, M.; Mueller, F. E. H.; Hinrichsen, V.; Heilmaier, M. (2017). Microstructure Formation and Resistivity Change in CuCr during Rapid Solidification. Metals, 7 (11), Art.Nr. 478. doi:10.3390/met7110478
Schmitt, A.; Kumar, S. K.; Kauffmann, A.; Li, X.; Stein, F.; Heilmaier, M. (2017). Creep of binary Fe-Al alloys with ultrafine lamellar microstructures. Intermetallics, 90, 180–187. doi:10.1016/j.intermet.2017.07.016
Kauffmann, A.; Stüber, M.; Leiste, H.; Ulrich, S.; Schlabach, S.; Szabo, D. V.; Seils, S.; Gorr, B.; Chen, H.; Seifert, H.-J.; Heilmaier, M. (2017). Combinatorial exploration of the high entropy alloy system Co-Cr-Fe-Mn-Ni. Surface and coatings technology, 325, 174–180. doi:10.1016/j.surfcoat.2017.06.041
Müller, F.; Gorr, B.; Christ, H.-J.; Chen, H.; Kauffmann, A.; Heilmaier, M. (2017). Effect of microalloying with silicon on high temperature oxidation resistance of novel refractory high-entropy alloy Ta-Mo-Cr-Ti-Al. Materials at high temperatures, 35 (1-3), 168–176. doi:10.1080/09603409.2017.1389115
Freudenberger, J.; Rafaja, D.; Geissler, D.; Giebeler, L.; Ullrich, C.; Kauffmann, A.; Heilmaier, M.; Nielsch, K. (2017). Face Centred Cubic Multi-Component Equiatomic Solid Solutions in the Au-Cu-Ni-Pd-Pt System. Metals, 7 (4), Art. Nr.: 135. doi:10.3390/met7040135
Schliephake, D.; Gombola, C.; Kauffmann, A.; Heilmaier, M.; Perepezko, J. H. (2017). Enhanced Oxidation Resistance of Mo-Si-B-Ti Alloys by Pack Cementation. Oxidation of metals, 88 (SI, 3-4), 267–277. doi:10.1007/s11085-017-9730-8
Gorr, B.; Müller, F.; Azim, M.; Christ, H.-J.; Müller, T.; Chen, H.; Kauffmann, A.; Heilmaier, M. (2017). High-Temperature Oxidation Behavior of Refractory High-Entropy Alloys : Effect of Alloy Composition. Oxidation of metals, 88 (3-4), 339–349. doi:10.1007/s11085-016-9696-y
2016
Yadav, D.; Bauri, R.; Kauffmann, A.; Freudenberger, J. (2016). Al-Ti Particulate Composite : Processing and Studies on Particle Twinning, Microstructure, and Thermal Stability. Metallurgical and materials transactions / A, 47 (8), Art.Nr. 4226–4238. doi:10.1007/s11661-016-3597-1
Chen, H.; Kauffmann, A.; Gorr, B.; Schliephake, D.; Seemüller, C.; Wagner, J. N.; Christ, H.-J.; Heilmaier, M. (2016). Microstructure and mechanical properties at elevated temperatures of a new Al-containing refractory high-entropy alloy Nb-Mo-Cr-Ti-Al. Journal of alloys and compounds, 661, 206–215. doi:10.1016/j.jallcom.2015.11.050
Kauffmann, A.; Geissler, D.; Freudenberger, J. (2016). Thermal stability of electrical and mechanical properties of cryo-drawn Cu and CuZr wires. Materials Science and Engineering: A, 651, 567–573. doi:10.1016/j.msea.2015.10.119
Gorr, B.; Mueller, F.; Christ, H.-J.; Mueller, T.; Chen, H.; Kauffmann, A.; Heilmaier, M. (2016). High temperature oxidation behavior of an equimolar refractory metal-based alloy 20Nb-20Mo-20Cr-20Ti-20Al with and without Si addition. Journal of alloys and compounds, 688, Part B, 468–477. doi:10.1016/j.jallcom.2016.07.219
Scherf, A.; Kauffmann, A.; Kauffmann-Weiss, S.; Scherer, T.; Li, X.; Stein, F.; Heilmaier, M. (2016). Orientation relationship of eutectoid FeAl and FeAl₂. Journal of applied crystallography, 49 (2), 442–449. doi:10.1107/S1600576716000911
Gorr, B.; Azim, M.; Christ, H.-J.; Chen, H.; Szabo, D. V.; Kauffmann, A.; Heilmaier, M. (2016). Microstructure Evolution in a New Refractory High-Entropy Alloy W-Mo-Cr-Ti-Al. Metallurgical and Materials Transactions A, 47, 961–970. doi:10.1007/s11661-015-3246-0
Eingeladene Vorträge am KIT
2024
Kauffmann, A. (2024, Januar 24). High Entropy Alloys and Compositionally Complex Alloys for Extreme Application Conditions. Seminar des Institut für Werkstofftechnik der Universität Kassel (2024), Kassel, Deutschland, 24. Januar 2024.
2023
Kauffmann, A. (2023, August 31). Phase Transformations in Novel High Temperature Materials. Seminar des Institut für Werkstoffe der Ruhr-Universität Bochum (2023), Bochum, Deutschland, 31. August 2023.
Kauffmann, A.; Schliephake, D.; Obert, S.; Tirunilai, A. S.; Hinrichs, F.; Winkens, G.; Wu, H.; Thota, H.; Eggeler, Y.; Mücklich, F.; Engstler, M.; Gorr, B.; Heilmaier, M. (2023, Januar 6). Mechanical response of pesting-resistant Mo-Si-Ti alloys for high temperature applications. International Conference on Plasticity, Damage, and Fracture (ICPDF 2023), Punta Cana, Dominikanische Republik, 3.–9. Januar 2023.
Kauffmann, A.; Schulz, C.; Laube, S.; Kellner, M.; Nestler, B.; Heilmaier, M. (2023). Role of orientation relationship for the formation of morphology and preferred orientation in NiAl-(Cr,Mo) during directional solidification. International Conference on Processing & Manufacturing of Advanced Materials : Processing, Fabrication, Properties, Applications (Thermec 2023), Wien, Österreich, 2.–7. Juli 2023.
Kauffmann, A.; Laube, S.; Schellert, S.; Seils, S.; Tirunilai, A. S.; Greiner, C.; Eggeler, Y.; Gorr, B.; Christ, H.-J.; Heilmaier, M. (2023). Formation and thermal stability of two-phase microstructures in Al-containing refractory compositionally complex alloys. International Conference on Processing & Manufacturing of Advanced Materials : Processing, Fabrication, Properties, Applications (Thermec 2023), Wien, Österreich, 2.–7. Juli 2023.
2022
Obert, S.; Schliephake, D.; Hinrichs, F.; Tirunilai, A. S.; Cong, X.; Gorr, B.; Kauffmann, A.; Heilmaier, M. (2022, Juli 6). Pesting-Resistant Mo-Based Alloys. Scientific seminar of the Institut für Komplexe Materialien / Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (IKM / IFW Dresden 2023), Dresden, Deutschland, 6. Juli 2022.
2017
Heilmaier, M.; Kauffmann, A.; Chen, H.; Schwaiger, R.; Choi, I.-C.; Sas, J.; Weiss, K. P.; Gorr, B.; Müller, F.; Christ, H.-J.; Sarma, V. S.; Freudenberger, J. (2017). Deformation Mechanisms in FCC and BCC High Entropy Alloys. Recent Progress in High Entropy and Compositionally Complex Alloys (2017), Bochum, Deutschland, 12.–13. Januar 2017.
2015
Kauffmann, A.; Bittner, F.; Thiel, F.; Freudenberger, J. (2015, Dezember 1). Efficient Refinement of Microstructures of Copper-Based Conductors. Materials Research Society Fall Meeting and Exhibit (MRS 2015), Boston, MA, USA, 29. November–4. Dezember 2015.
Kauffmann, A.; Scherf, A.; Kauffmann-Weiß, S.; Li, X.; Stein, F.; Heilmaier, M. (2015, November 24). Evaluation of the orientation relationship of eutectoid FeAl and FeAl2 using EBSD and FIB. 1. Workshop Microanalysis on FIB-SEMs (2015), Karlsruhe, Deutschland, 24. November 2015.
2014
Kauffmann, A. (2014, November 6). Gefügeverfeinerung von Kupferlegierungen durch mechanische Zwillingsbildung. Jahrestagung Kupfersymposium (2014), Frankfurt am Main, Deutschland, 4.–6. November 2014.