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  1. 原著論文

Instability of MX and M23C6 type precipitates in F82H steels under 2.8 MeV Fe2+ irradiation at 673 K

https://repo.qst.go.jp/records/74808
https://repo.qst.go.jp/records/74808
8430e90b-d5a9-48a7-b6d4-af3a009173fe
Item type 学術雑誌論文 / Journal Article(1)
公開日 2019-03-15
タイトル
タイトル Instability of MX and M23C6 type precipitates in F82H steels under 2.8 MeV Fe2+ irradiation at 673 K
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 Kano, Sho

× Kano, Sho

WEKO 781389

Kano, Sho

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Huilong, Yang

× Huilong, Yang

WEKO 781390

Huilong, Yang

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Jingjie, Shen

× Jingjie, Shen

WEKO 781391

Jingjie, Shen

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Zishou, Zhao

× Zishou, Zhao

WEKO 781392

Zishou, Zhao

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McGrady, John

× McGrady, John

WEKO 781393

McGrady, John

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Hamaguchi, Dai

× Hamaguchi, Dai

WEKO 781394

Hamaguchi, Dai

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Ando, Masami

× Ando, Masami

WEKO 781395

Ando, Masami

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Tanigawa, Hiroyasu

× Tanigawa, Hiroyasu

WEKO 781396

Tanigawa, Hiroyasu

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Abe, Hiroaki

× Abe, Hiroaki

WEKO 781397

Abe, Hiroaki

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Hamaguchi, Dai

× Hamaguchi, Dai

WEKO 781398

en Hamaguchi, Dai

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Ando, Masami

× Ando, Masami

WEKO 781399

en Ando, Masami

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Tanigawa, Hiroyasu

× Tanigawa, Hiroyasu

WEKO 781400

en Tanigawa, Hiroyasu

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抄録
内容記述タイプ Abstract
内容記述 The purpose of this study is to investigate the response of the precipitates against irradiation in F82H steels which are considered as main candidate structure material for the fusion DEMO reactor blanket. M23C6-type precipitates contained F82H-IEA steel, and MX- and M23C6-type precipitates contained F82H-BA12 steel were selected as experimental specimens. Iron irradiation at 673 K using ion accelerator was performed on both steels up to 50 dpa. After irradiation, the instability behavior of precipitates was characterized using transmission electron microscopy. It is found that in F82H-IEA specimens, the number density of radiation defects at 20 dpa was 3.26×1021 m−3, and the amorphization of M23C6 was undetected up to 50 dpa. Although Ostwald ripening occurred in M23C6 precipitates, the average size of M23C6 mildly decreased with irradiation dose within this study. For F82H-BA12 specimens, the shrinkage rate of MX- and M23C6-type precipitates was estimated respectively as 0.06 and 0.03 nm/dpa. Hence, the MX and M23C6-type precipitates in F82H steel exhibit an excellent irradiation resistance under the present irradiation condition. Moreover, the behaviors like amorphization and weakening in contrast were not observed in M23C6 precipitates in both specimens, which is different from electron irradiation, presumably due to the factors such as different damage rate.
書誌情報 Nuclear Materials and Energy

巻 17, p. 56-61, 発行日 2018-09
出版者
出版者 Elsevier
ISSN
収録物識別子タイプ ISSN
収録物識別子 2352-1791
DOI
識別子タイプ DOI
関連識別子 10.1016/j.nme.2018.08.001
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.nme.2018.08.001
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