Investigation on the polymer-like deformation behavior in ultra-fine grained metastable austenitic steel

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Research activities and research achievements in the academic year 2022 are as follows:(1)Tensile deformation with in-situ neutron diffraction experiments were performed on the UFG 304 stainless steel at BL19-TAKUMI, JPARC, Japan. The transformation rate of deformation induced martensite and the phase stress partitioning between austenite matrix and martensite during the propagation of the huge Luders band were quantitatively evaluated by the neutron diffraction technique.(2)Above results were summarized into a short paper submitted to the journal Scripta Materialia and now it is under review.(3)An oral presentation was given in the international conference “The 7th International Conference on Advanced Steels (ICAS)” held on May 29 - June 1, 2022 Tsukuba, Japan.