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Deformation-induced dynamic ferrite transformation during hot-rolling in oxide dispersion strengthened ferritic steel with 9 wt% Cr content
https://repo.qst.go.jp/records/49491
https://repo.qst.go.jp/records/4949179eeecbe-77e7-4a96-86fc-311b97c880df
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-01-22 | |||||
タイトル | ||||||
タイトル | Deformation-induced dynamic ferrite transformation during hot-rolling in oxide dispersion strengthened ferritic steel with 9 wt% Cr content | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kasai, Shoki
× Kasai, Shoki× Yamashiro, Tetsuya× Zhang, Shenghua× Oono, Naoko× Hayashi, Shigenari× Ohtsuka, Satoshi× 酒瀬川, 英雄× S.Ukai× Sakasegawa, Hideo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 9CrODS steel, a candidate fission and fusion structural material, was subjected to hot-rolling with varying surface temperature and cooling rate just after hot-rolling. The deformation-induced dynamic ferrite transformation was confirmed at the rolling temperature 805℃ above Ar3 (780℃). This transformation exhibits three characteristic features: transformation for extremely short duration (0.044 s), retaining carbon content equal to the original without long-distance carbon diffusion, and elongated coarse ferrite grains (10 μm). The massive transformation was proposed for the dynamic ferrite transformation from the hot-rolled austenite. The driving force for massive transformation was quantitatively estimated considering dislocations accumulated by hot-rolling. It was also shown that the oxide particles in 9CrODS steel plays a critical role for dynamic ferrite transformation by suppressing the dynamic recrystallization at hot-rolling. | |||||
書誌情報 |
Metallurgical and Materials Transactions A 巻 50, 号 2, p. 590-600, 発行日 2019-02 |
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出版者 | ||||||
出版者 | Springer | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1073-5623 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1007/s11661-018-5056-7 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://link.springer.com/article/10.1007%2Fs11661-018-5056-7 |