Effect of hydrogen on stress corrosion cracking of magnesium alloy in 0.1 M Na2SO4 solution

被引：54

作者：

Chen, Jian ^{[1
]}

Wang, Jianqiu ^{[1
]}

Han, Enhou ^{[1
]}

Ke, Wei ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 488卷 / 1-2期

关键词：

magnesium alloys; stress corrosion cracking; hydrogen embrittlement;

D O I：

10.1016/j.msea.2007.11.035

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of hydrogen on stress corrosion cracking (SCC) of an as-cast MgA19Zn1 magnesium alloy was investigated using slow strain rate test (SSRT). The results showed that hydrogen diffused to interior of matrix, enriched and formed hydride at P phase that caused the cracking of phase. Micro-cracks initiated at P phase and combined into main crack. The main crack propagated by coalescence of the existing micro-cracks ahead. It was indicated that hydrogen embrittlement was the main mechanism for the SCC of MgAl9Zn1 alloy. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：428 / 434

页数：7

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