MONITORING SUB-CRITICAL CRACK GROWTH DUE TO STRESS CORROSION OR HYDROGEN EMBRITTLEMENT BY ACOUSTIC EMISSION.

被引：0
|
作者：
Pollock, W.J.
Hardie, D.
Holroyd, N.J.H.
机构：
来源：
British Corrosion Journal | 1982年 / 17卷 / 03期
关键词：
ALUMINUM AND ALLOYS - Stress Corrosion Cracking - COPPER ZINC ALLOYS - Stress Corrosion Cracking - CORROSION - Acoustic Emission Testing - MAGNESIUM ALUMINUM ALLOYS - Stress Corrosion Cracking - STEEL - Hydrogen Embrittlement;
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摘要：
Acoustic emission ring-down counting has been used to monitor sub critical crack growth by stress corrosion of mild steel in disodium hydrogen phosphate, brass in sodium nitrite and magnesium-7% aluminum in potassium chromate/sodium chloride mixtures, and by hydrogen embrittlement in mild steel and a 7179 T651 aluminum alloy. The level of acoustic emission activity varies between different alloy/embrittlement systems and is dependent upon microstructure, fracture speech and crack growth rate. The significance of the results is discussed.
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页码：103 / 111
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