Publications

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Journal Article (14)

  1. 1.
    Journal Article
    Zhang, Z.; Koyama, M.; Wang, M.; Tsuzaki, K.; Tasan, C. C.; Noguchi, H.: Microstructural mechanisms of fatigue crack non-propagation in TRIP-maraging steels. International Journal of Fatigue 113, pp. 126 - 136 (2018)
  2. 2.
    Journal Article
    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)
  3. 3.
    Journal Article
    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)
  4. 4.
    Journal Article
    Zhang, Z.; Koyama, M.; Wang, M.; Tsuzaki, K.; Tasan, C. C.; Noguchi, H.: Effects of lamella size and connectivity on fatigue crack resistance of TRIP-maraging steel. International Journal of Fatigue 100 (1), pp. 176 - 186 (2017)
  5. 5.
    Journal Article
    Koyama, M.; Akiyama, E.; Lee, Y.-K.; Raabe, D.; Tsuzaki, K.: Overview of hydrogen embrittlement in high-Mn steels. International Journal of Hydrogen Energy 42 (17), pp. 12706 - 12723 (2017)
  6. 6.
    Journal Article
    Koyama, M.; Zhang, Z.; Wang, M.; Ponge, D.; Raabe, D.; Tsuzaki, K.; Noguchi, H.; Tasan, C. C.: Bone-like crack resistance in hierarchical metastable nanolaminate steels. Science 355 (6329), pp. 1055 - 1057 (2017)
  7. 7.
    Journal Article
    Nagashima, T.; Koyama, M.; Bashir, A.; Rohwerder, M.; Tasan, C. C.; Akiyama, E.; Raabe, D.; Tsuzaki, K.: Interfacial hydrogen localization in austenite/martensite dual-phase steel visualized through optimized silver decoration and scanning Kelvin probe force microscopy. Materials and Corrosion - Werkstoffe und Korrosion 68 (3), pp. 306 - 310 (2017)
  8. 8.
    Journal Article
    Koyama, M.; Rohwerder, M.; Tasan, C. C.; Bashir, A.; Akiyama, E.; Takai, K.; Raabe, D.; Tsuzaki, K.: Recent progress in microstructural hydrogen mapping in steels: quantification, kinetic analysis, and multi-scale characterisation. Materials Science and Technology 33 (13), pp. 1481 - 1496 (2017)
  9. 9.
    Journal Article
    Koyama, M.; Tasan, C. C.; Nagashima, T.; Akiyama, E.; Raabe, D.; Tsuzaki, K.: Hydrogen-assisted damage in austenite/martensite dual-phase steel. Philosophical Magazine Letters 96 (1), pp. 9 - 18 (2016)
  10. 10.
    Journal Article
    Koyama, M.; Bashir, A.; Rohwerder, M.; Merzlikin, S. V.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Spatially and Kinetically Resolved Mapping of Hydrogen in a Twinning-Induced Plasticity Steel by Use of Scanning Kelvin Probe Force Microscopy. Journal of the Electrochemical Society 162 (12), pp. C638 - C647 (2015)
  11. 11.
    Journal Article
    Tasan, C. C.; Diehl, M.; Yan, D.; Bechtold, M.; Roters, F.; Schemmann, L.; Zheng, C.; Peranio, N.; Ponge, D.; Koyama, M. et al.; Tsuzaki, K.; Raabe, D.: An Overview of Dual-Phase Steels: Advances in Microstructure-Oriented Processing and Micromechanically Guided Design. Annual Review of Materials Research 45, pp. 391 - 431 (2015)
  12. 12.
    Journal Article
    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)
  13. 13.
    Journal Article
    Raabe, D.; Springer, H.; Gutiérrez-Urrutia, I.; Roters, F.; Bausch, M.; Seol, J. B.; Koyama, M.; Choi, P.-P.; Tsuzaki, K.: Alloy Design, Combinatorial Synthesis, and Microstructure-Property Relations for Low-Density Fe–Mn–Al–C Austenitic Steels. JOM-Journal of the Minerals Metals & Materials Society 66 (9), pp. 1845 - 1856 (2014)
  14. 14.
    Journal Article
    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)

Talk (3)

  1. 15.
    Talk
    Herbig, M.; Kim, J.-H.; Ponge, D.; Li, Y.; Morsdorf, L.; Goto, S.; Haley, D.; Koyama, M.; Bashir, A.; Merzlikin, S. V. et al.; Rohwerder, M.; Akiyama, E.; Tsuzaki, K.; Kuzmina, M.; Sandlöbes, S.; Choi, P.-P.; Kirchheim, R.; Raabe, D.: Nanostructure Manipulation by Segregation Engineering. 2nd ESISM International Workshop on Fundamental Issues of Structural Materials, Kyoto, Japan (2014)
  2. 16.
    Talk
    Tasan, C. C.; Koyama, M.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Hydrogen-assisted decohesion and localized plasticity in dual phase steel. MPIE Workshop on Hydrogen Embrittlement, Düsseldorf, Germany (2014)
  3. 17.
    Talk
    Koyama, M.; Tasan, C. C.; Akiyama, E.; Tsuzaki, K.; Raabe, D.: Hydrogen effects on dual phase steel micro-mechanics. Thermec 2013, Las Vegas, NV, USA (2013)
 
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