The 190th ISIJ Autumn Meeting
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ISIJ and JIMM Joint SessionsISIJ and JIMM Joint Sessions

Materials science of martensitic and bainitic transformations and its applications 4

Thu. Sep 18, 2025 9:20 AM - 10:40 AM JST
Thu. Sep 18, 2025 12:20 AM - 1:40 AM UTC
Room14（Institute for the Advancement of Higher Education, 3F E310）
森戸茂一 [島根大]
9:20 AM - 9:40 AM JST(12:20 AM - 12:40 AM UTC)

[J32]Effect of carbon segregation to block boundary on grain refinement strengthening in martensitic steel

○Yakumo Kamigasa1, Toshihiro Tsutiyama1, Takuro Masumura1, Ayumu Yamada1, Yongjie Zhang2, Eriko Shimoda3 (1.Kyushu Univ., 2.Tohoku Univ., 3.Nippon Steel)
9:40 AM - 10:00 AM JST(12:40 AM - 1:00 AM UTC)

[J33]Effect of carbon content and austenite grain size on dislocation density in low-carbon martensitic steels

○Takumi Okamoto1, Yuhki Tsukada1, Dasom Kim1, Naoki Takada1, Toshiyuki Koyama2 (1.Nagoya Univ., 2.NIMS)
10:00 AM - 10:20 AM JST(1:00 AM - 1:20 AM UTC)

[J34]Strengthening mechanism in martensitic steels containing carbon[1] Strengthening mechanism in as-quenched martensite

○Yohei Hiyama1, Osamu Idohara1, Setsuo Takaki2 (1.Neturen, 2.Kyushu Univ.)
10:20 AM - 10:40 AM JST(1:20 AM - 1:40 AM UTC)

[J35]Strengthening mechanism in martensitic steels containing carbon[2] Strengthening mechanism in tempered martensite

○Setsuo Takaki1, Yohei Hiyama2, Osamu Idohara2 (1.Kyushu Univ., 2.Neturen)
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