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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