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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| j.nme.2016.05.015.pdf | 2.9 MB | Adobe PDF | 見る/開く |
| タイトル: | Effect of Cr/Al contents on the 475℃ age-hardening in oxide dispersion strengthened ferritic steels |
| 著者: | Han, Wentuo Yabuuchi, Kiyohiro    https://orcid.org/0000-0002-3049-5396 (unconfirmed)Kimura, Akihiko https://orcid.org/0000-0002-3731-4471 (unconfirmed)Ukai, Shigeharu Oono, Naoko Kaito, Takeji Torimaru, Tadahiko Hayashi, Shigenari |
| キーワード: | ODS ferritic steel 475℃ embrittlement Al and Cr effects Cr-enriched α′ phase Hardness evolution |
| 発行日: | Dec-2016 |
| 出版者: | Elsevier BV |
| 誌名: | Nuclear Materials and Energy |
| 巻: | 9 |
| 開始ページ: | 610 |
| 終了ページ: | 615 |
| 抄録: | The age-hardening in oxide dispersion strengthened (ODS) ferritic steels with various additions of Cr (12, 15 and 18 wt.%) and Al (0, 5, 7 and 9 wt.%) were investigated. After 5000 h aging at 475ºC, the hardness increases in all these ODS steels, while the increased level depends on the Cr/Al contents. In 12Cr-ODS steels, the more the Al, the higher the increased hardness is. However, in 18Cr-ODS steels, higher Al addition suppresses the age-hardening. TEM observations of 18Cr-ODS steels reveal that 9Al suppresses the formation of Cr-enriched α' phase, while the 18Cr-5Al-ODS steel comprises a plenty of α′ phases. Adding Zr in ODS steels appears to increase the age-hardening. The susceptibility to age-hardening is remarkably lower in the ODS ferritic steels than in the non-ODS ferritic steel with the similar concentration of Cr. |
| 著作権等: | © 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| URI: | http://hdl.handle.net/2433/218604 |
| DOI(出版社版): | 10.1016/j.nme.2016.05.015 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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