Year 2025 Autumn Annual Meeting of JIMM
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Session Details

共同セッション

[J]JIMM-ISIJ Joint Session Materials science of martensitic and bainitic transformations and its applications(2)

Thu. Sep 18, 2025 9:20 AM - 12:20 PM JST
Thu. Sep 18, 2025 12:20 AM - 3:20 AM UTC
ISIJ'ｓ room(E310, 3rd floor, Organization for the Advancement of Higher Education)
座長:森戸 茂一(島根大学)、鈴木崇久(日本製鉄)
※表示の講演時間には質疑応答時間も含みます。
（質疑応答時間5分、基調講演と招待講演は5～10分）
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 Tsutiyama2, Takuro Masumura3, Ayumu Yamada4, Yongjie Zhang5, Eriko Shimoda6 (1. Kyushu Univ., 2. Kyushu Univ., 3. Kyushu Univ., 4. Kyushu Univ., 5. Tohoku Univ., 6. Nippon Steel)
Comment()
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 Tsukada2, Dasom Kim2, Naoki Takada2, Toshiyuki Koyama3 (1. Nagoya Univ., 2. Nagoya Univ., 3. NIMS)
Comment()
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 Idohara2, Setsuo Takaki3 (1. Neturen, 2. Neturen, 3. Kyushu Univ.)
Comment()
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 Idohara3 (1. Kyushu Univ., 2. Neturen, 3. Neturen)
Comment()
10:40 AM - 11:00 AM JST(1:40 AM - 2:00 AM UTC)

break

11:00 AM - 11:20 AM JST(2:00 AM - 2:20 AM UTC)

[J36]Measurement of transformation internal stress of high carbon martensitic steel by micro-hole-drilling method

*Kazuki Tamura1, Masahide Natori2, Nobuo Nakada3 (1. NSK, 2. NSK, 3. Science Tokyo)
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11:20 AM - 11:40 AM JST(2:20 AM - 2:40 AM UTC)

[J37]Assessment of internal stresses in lath martensite via elastic strain release

*Wenbo Zhao1, Ryota Nagashima2, Nobuo Nakada3, Kazuki Tamura4 (1. Science Tokyo, 2. Science Tokyo, 3. Science Tokyo, 4. NSK)
Comment()
11:40 AM - 12:00 PM JST(2:40 AM - 3:00 AM UTC)

[J38]Effects of carbide-forming elements on tempering behaviors of high-carbon martensite

*Yongjie Zhang1, Yotaro Yanai2, Goro Miyamoto3, Tadashi Furuhara4, Wu Gong5, Stefanus Harjo6 (1. Tohoku Univ., 2. Tohoku Univ., 3. Tohoku Univ., 4. Tohoku Univ., 5. JAEA, 6. JAEA)
Comment()
12:00 PM - 12:20 PM JST(3:00 AM - 3:20 AM UTC)

[J39]Multi-Scale Analysis of Local Deformation Behavior of Lath Martensite in Low-Carbon Steel

*Shuang GONG1, Junya INOUE1,2 (1. Eng., UTokyo, 2. IIS, UTokyo)
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