ダウンロード数: 182
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
j.nimb.2015.07.076.pdf | 876.91 kB | Adobe PDF | 見る/開く |
タイトル: | Effect of recrystallization on ion-irradiation hardening and microstructural changes in 15Cr-ODS steel |
著者: | Ha, Yoosung Kimura, Akihiko https://orcid.org/0000-0002-3731-4471 (unconfirmed) |
著者名の別形: | 木村, 晃彦 |
キーワード: | Dual ion irradiation Irradiation hardening Defect trapping and absorption |
発行日: | 15-Dec-2015 |
出版者: | Elsevier |
誌名: | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
巻: | 365 |
号: | Part A |
開始ページ: | 313 |
終了ページ: | 318 |
抄録: | The effects of recrystallization on ion-irradiation hardening and microstructural changes were investigated for a 15Cr-ODS ferritic steel. Dual ion-irradiation experiments were performed at 470 °C using 6.4 MeV Fe3+ ions simultaneously with energy-degraded 1 MeV He+ ions. The displacement of damage at 600 nm depth from the specimen surface was 30 dpa. Nano-indentation test with Berkovich type indentation tip was measured by constant stiffness measurement (CSM) technique. Results from nano-indentation tests indicate irradiation hardening in ODS steels even at 470 °C, while it wasn't observed in reduced activation ferritic steel. Recrystallized ODS steel shows a larger irradiation hardening, which is considered to be due to the reduction of grain boundaries and interfaces of matrix/oxide particles. In 20% cold rolled ODS steel after recrystallization, both the hardening and bubble number density were lower than those of recrystallized ODS steel, suggesting that dislocations generated by cold rolling suppress bubble formation. Based on the estimation of irradiation hardening from TEM observation results, it is considered that the bubbles are not the main factor controlling ion-irradiation hardening. |
記述: | Proceedings of the 19th International Conference on Ion Beam Modification of Materials (IBMM 2014) |
著作権等: | © 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ The full-text file will be made open to the public on 15 December 2017 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/217609 |
DOI(出版社版): | 10.1016/j.nimb.2015.07.076 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。