HYDROGEN INDUCED FRACTURE OF A HIGH-STRENGTH ALUMINUM-ALLOY

被引：36
作者：
KOCH, GH
机构：
来源：
CORROSION | 1979年 / 35卷 / 02期
关键词：
D O I：
10.5006/0010-9312-35.2.73
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A fractographic study was carried out on intergranular and transgranular cracks produced in the commercial aluminum alloy 7075 in a 3% NaCl aqueous solution and in ionized hydrogen gas. It is demonstrated that fracture in both environments is similar, suggesting a common mechanism of crack growth. It is concluded that stress corrosion cracking (SCC) is mechanical and involves hydrogen generated by the aqueous solution.
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页码：73 / 78
页数：6
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