Enhanced formation of <1 0 0> and <1 1 1> interstitial loops by helium clustering in bcc iron

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• 作者：L. Yang^a ; ^{yanglildk@uestc.edu.cn} ; H. Liu^a ; H.L. Zhou^a ; S.M. Peng^b ; X.G. Long^b ; X.S. Zhou^b ; X.T. Zu^a ; F. Gao^c ; ^{gaofeium@umich.edu}
• 关键词：Defects ; Microstructure ; Atomistic simulation ; He bubble ; Bcc iron
• 刊名：Materials Letters
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：190
• 期：Complete
• 页码：260-262
• 全文大小：766 K
• 卷排序：190

文摘

The evolution of SIAs depends on the spatial distribution of helium clusters. A 1/2<1 1 1> interstitial loop is formed for two He clusters separated far away from each other. A <1 0 0> interstitial loop can be generated at special conditions. Pressure fields created by He clusters provide a new mechanism for the formation and growth of a <1 0 0> interstitial loop.