Koyama, M.; Ogawa, T.; Yan, D.; Matsumoto, Y.; Tasan, C. C.; Takai, K.; Tsuzaki, K.: Hydrogen desorption and cracking associated with martensitic transformation in Fe–Cr–Ni-Based austenitic steels with different carbon contents. International Journal of Hydrogen Energy 42 (42), pp. 26423 - 26435 (2017)
Ogawa, T.; Koyama, M.; Tasan, C. C.; Tsuzaki, K.; Noguchi, H.: Effects of martensitic transformability and dynamic strain age hardenability on plasticity in metastable austenitic steels containing carbon. Journal of Materials Science: Materials in Electronics 52 (13), pp. 7868 - 7882 (2017)
Koyama, M.; Springer, H.; Merzlikin, S. V.; Tsuzaki, K.; Akiyama, E.; Raabe, D.: Hydrogen embrittlement associated with strain localization in a precipitation-hardened Fe–Mn–Al–C light weight austenitic steel. International Journal of Hydrogen Energy 39 (9), pp. 4634 - 4646 (2014)
Koyama, M.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Hydrogen-assisted failure in a twinning-induced plasticity steel studied under in situ hydrogen charging by electron channeling contrast imaging. Acta Materialia 61 (12), pp. 4607 - 4618 (2013)
In this project, we aim to enhance the mechanical properties of an equiatomic CoCrNi medium-entropy alloy (MEA) by interstitial alloying. Carbon and nitrogen with varying contents have been added into the face-centred cubic structured CoCrNi MEA.
The aim of this project is to correlate the point defect structure of Fe1-xO to its mechanical, electrical and catalytic properties. Systematic stoichiometric variation of magnetron-sputtered Fe1-xO thin films are investigated regarding structural analysis by transition electron microscopy (TEM) and spectroscopy methods, which can reveal the defect…