%0 Journal Article
%T Effect of Interstitial Hydrogen on Cohesive Strength of Al Grain Boundary with Mg Segregation
%A Xiaoguang LIU
%A Xiaowei WANG
%A Jingyang WANG
%A Hongyan ZHANG
%A <br>Xiaoguang
%A LIU
%A Xiaowei
%A WANG
%A Jingyang
%A WANG
%A Hongyan
%A ZHANG
%J 材料科学技术学报
%D 2006
%I 
%X The effect of interstitial hydrogen on the cohesion of the Al ∑=11(113) grain boundary (GB) is investigated based on the thermodynamic model of Rice-Wang using the first-principles density function calculation. The results indicate that interstitial H behaves as an embrittler from "strengthening energy" analysis. The reduced GB cohesion due to the presence of H at the GB is attributed to the low affinity between H and Al, and the weakened bonding of Al atomic pairs perpendicular to GB plane.
%K Hydrogen
%K Grain boundary
%K Al-Mg alloys<br>铝镁合金
%K 晶界
%K 粘结强度
%K 氢
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=B7E43A2689FEC14A2EBC2BB9DFD30D2B&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=5E25104E99903E8A&eid=09E495F616948E78&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=15