ダウンロード数: 165

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 
isijinternational.55.1131.pdf568.5 kBAdobe PDF見る/開く
タイトル: First-principles Study of Hydrogen-induced Embrittlement in Fe Grain Boundary with Cr Segregation
著者: Yuasa, Motohiro
Hakamada, Masataka  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-8082-2148 (unconfirmed)
Chino, Yasumasa
Mabuchi, Mamoru  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-0894-6306 (unconfirmed)
著者名の別形: 湯浅, 元仁
袴田, 昌高
千野, 靖正
馬渕, 守
キーワード: first-principles calculations
grain boundary
segregation
hydrogen embrittlement
発行日: 15-May-2015
出版者: Iron and Steel Institute of Japan
誌名: ISIJ International
巻: 55
号: 5
開始ページ: 1131
終了ページ: 1134
抄録: First-principles tensile tests were performed to investigate the effect of Cr segregation on the hydrogen-induced embrittlement in Fe grain boundaries. The Fe grain boundary with H and Cr segregation exhibited the higher maximum stress and strain to failure than those of the Fe grain boundary with only H segregation. Cr segregation suppressed the extension of the Fe-Fe bond weakened by H segregation. In the Fe grain boundary with H and Cr segregation, the decrease in the charge density in the bond with straining was suppressed because of charge transfer from the Cr atom to its neighboring Fe atoms. This charge accumulation in the grain boundary region is responsible for the reinforcement of bonds in the Fe grain boundary with H segregation, contributing to the suppression the hydrogen-induced embrittlement of Fe grain boundaries.
著作権等: © 2015 by The Iron and Steel Institute of Japan
Publisher permitted to deposit this paper on this repository. 発行元の許可を得て登録しています
URI: http://hdl.handle.net/2433/237639
DOI(出版社版): 10.2355/isijinternational.55.1131
出現コレクション:学術雑誌掲載論文等

アイテムの詳細レコードを表示する

Export to RefWorks


出力フォーマット 


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。