Hydrogen Embrittlement of Ordered Ni3Fe Alloy

被引：2
|
作者：
Chen Yexin [1 ]
Zhu Zaifei [1 ]
Wan Xiaojing [1 ]
机构：
[1] Shanghai Univ, Inst Mat Sci, Shanghai 200072, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2008年 / 37卷 / 12期
基金：
中国国家自然科学基金;
关键词：
ordered Ni3Fe; hydrogen embrittlement; mechanical property;
D O I：
10.1016/S1875-5372(10)60007-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mechanical properties of ordered Ni3Fe alloy in gaseous hydrogen or simultaneously at hydrogen charging were investigated. The results show that the ductility of the ordered Ni3Fe alloys are fast decreasing, then turns to be stable with the increase of hydrogen pressure and current density during simultaneous hydrogen charging. The hydrogen embrittlement factor has the same dependence on the hydrogen pressure and charging current density. The mechanism of hydrogen embrittlement of ordered Ni3Fe alloy in gaseous hydrogen is the atomic hydrogen diffusing into alloy through the catalytic reaction, and the degree of embrittlement is proportional to the amount of hydrogen atoms diffusing into the alloy.
引用
收藏
页码：2109 / 2113
页数：5
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