Segregation effects of interstitial and substitutional elements at grain boundaries in ferritic iron and their effect on liquid metal embrittlement

Publications of Steffen Neumeier

Journal Article (21)

1.
Journal Article
Morgado, F.; Stephenson, L.; Bhatt, S.; Freysoldt, C.; Neumeier, S.; Katnagallu, S.; Subramanyam, A.; Pietka, I.; Hammerschmidt, T.; Vurpillot, F. et al.; Gault, B.: Stacking Fault Segregation Imaging With Analytical Field Ion Microscopy. Microscopy and Microanalysis 31 (1), ozae105 (2025)
2.
Journal Article
Karpstein, N.; Laplanche, G.; Saksena, A.; Zehl, R.; Bezold, A.; Horst, O.; Bürger, D.; Kostka, A.; Zenk, C.; Neumeier, S. et al.; Gault, B.; Ludwig, A.; Fries, S.; Spiecker, E.: Microscopic mechanism of the L12-D019 phase transformation in a Co-base single crystal superalloy. Acta Materialia 282, 120416 (2025)
3.
Journal Article
Pyczak, F.; Liang, Z.; Neumeier, S.; Rao, Z.: Stability and Physical Properties of the L12-γ' Phase in the CoNiAlTi-System. Metallurgical and Materials Transactions A 54 (5), pp. 1661 - 1670 (2023)
4.
Journal Article
Yoo, B.; Jung, C.; Ryou, K.; Choi, W. S.; Haußmann, L.; Yang, S.; Boll, T.; Neumeier, S.; Choi, P.-P.: Directed energy deposition of γ/γ' Co–Al–W superalloys. Additive Manufacturing 60, 103287 (2022)
5.
Journal Article
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. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 854, 143798 (2022)
6.
Journal Article
Morgado, F. F.; Katnagallu, S.; Freysoldt, C.; Klaes, B.; Vurpillot, F.; Neugebauer, J.; Raabe, D.; Neumeier, S.; Gault, B.; Stephenson, L.: Revealing atomic-scale vacancy-solute interaction in nickel. Scripta Materialia 203, 114036 (2021)
7.
Journal Article
Morgado, F. F.; Katnagallu, S.; Freysoldt, C.; Klaes, B.; Vurpillot, F.; Neugebauer, J.; Raabe, D.; Neumeier, S.; Gault, B.; Stephenson, L.: Corrigendum to Revealing atomic-scale vacancy-solute interaction in nickel (Scripta Materialia (2021) 203, (114036) (S135964622100316X), (10.1016/j.scriptamat.2021.114036)). Scripta Materialia 205, 114213 (2021)
8.
Journal Article
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. Corrosion Science 189, 109594 (2021)
9.
Journal Article
Volz, N.; Xue, F.; Zenk, C. H.; Bezold, A.; Gabel, S.; Subramanyam, A. P. A.; Drautz, R.; Hammerschmidt, T.; Makineni, S. K.; Gault, B. et al.; 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. Acta Materialia 214, 117019 (2021)
10.
Journal Article
He, J.; Zenk, C. H.; Zhou, X.; Neumeier, S.; Raabe, D.; Gault, B.; Makineni, S. K.: On the atomic solute diffusional mechanisms during compressive creep deformation of a Co–Al–W–Ta single crystal superalloy. Acta Materialia 184, pp. 86 - 99 (2020)
11.
Journal Article
Katnagallu, S.; Stephenson, L.; Mouton, I.; Freysoldt, C.; Subramanyam, A. P. A.; Jenke, J.; Ladines, A. N. C.; Neumeier, S.; Hammerschmidt, T.; Drautz, R. et al.; Neugebauer, J.; Vurpillot, F.; Raabe, D.; Gault, B.: Imaging individual solute atoms at crystalline imperfections in metals. New Journal of Physics 21 (12), 123020 (2019)
12.
Journal Article
Makineni, S. K.; Lenz, M.; Neumeier, S.; Spiecker, E.; Raabe, D.; Gault, B.: Elemental segregation to antiphase boundaries in a crept CoNi-based single crystal superalloy. Scripta Materialia 157, pp. 62 - 66 (2018)
13.
Journal Article
Makineni, S. K.; Lenz, M.; Kontis, P.; Li, Z.; Kumar, A.; Felfer, P. J.; Neumeier, S.; Herbig, M.; Spiecker, E.; Raabe, D. et al.; Gault, B.: Correlative Microscopy—Novel Methods and Their Applications to Explore 3D Chemistry and Structure of Nanoscale Lattice Defects: A Case Study in Superalloys. JOM-Journal of the Minerals Metals & Materials Society 70 (9), pp. 1736 - 1743 (2018)
14.
Journal Article
Volz, N.; Zenk, C. H.; Cherukuri, R.; Kalfhaus, T.; Weiser, M.; Makineni, S. K.; Betzing, C.; Lenz, M.; Gault, B.; Fries, S. G. et al.; Schreuer, J.; Vaβen, R.; Virtanen, S.; Raabe, D.; Spiecker, E.; Neumeier, S.; Göken, M.: Thermophysical and Mechanical Properties of Advanced Single Crystalline Co-base Superalloys. Metallurgical and Materials Transactions A 49 (9), pp. 4099 - 4109 (2018)
15.
Journal Article
Makineni, S. K.; Kumar, A.; Lenz, M.; Kontis, P.; Meiners, T.; Zenk, C. H.; Zaefferer, S.; Eggeler, G. F.; Neumeier, S.; Spiecker, E. et al.; Raabe, D.; Gault, B.: On the diffusive phase transformation mechanism assisted by extended dislocations during creep of a single crystal CoNi-based superalloy. Acta Materialia 155, pp. 362 - 371 (2018)
16.
Journal Article
Kolb, M.; Freund, L. P.; Fischer, F.; Povstugar, I.; Makineni, S. K.; Gault, B.; Raabe, D.; Müller, J.; Spiecker, E.; Neumeier, S. et al.; Göken, M.: On the grain boundary strengthening effect of boron in γ/γ′ Cobalt-base superalloys. Acta Materialia 145, pp. 247 - 254 (2018)
17.
Journal Article
Zenk, C. H.; 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. Acta Materialia 135, pp. 244 - 251 (2017)
18.
Journal Article
Kolb, M.; Zenk, C. H.; Kirzinger, A.; Povstugar, I.; Raabe, D.; Neumeier, S.; Göken, M.: Influence of rhenium on γ′-strengthened cobalt-base superalloys. Journal of Materials Research 32 (13), pp. 2551 - 2559 (2017)
19.
Journal Article
Povstugar, I.; Zenk, C. H.; Li, R.; Choi, P.-P.; Neumeier, S.; Dolotko, O. V.; Hoelzel, M.; Göken, M.; Raabe, D.: Elemental partitioning, lattice misfit and creep behaviour of Cr containing γ′ strengthened Co base superalloys. Materials Science and Technology 32 (3), pp. 220 - 225 (2016)
20.
Journal Article
Koßmann, J.; Zenk, C. H.; 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. Journal of Materials Science: Materials in Electronics 50 (19), pp. 6329 - 6338 (2015)

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