Influence Of Environmental Factors On The Susceptibility to Stress Corrosion Cracking Of High-Strength Al-Zn-Mg Alloys

摘要

Stress corrosion cracking (SCC) is the result of the Combined action of Metallurgical , Mechanical , and environment factors. While the letter two factors are governed by the service conditions. The effect of the environment on crack initiation and propagation has been shown to depend on the aggressiveness of the environment. The experiments performed on this factor during the last decades enhance our knowledge of the mechanism of SCC of wrought aluminum alloy. The present paper describes the environmental factors such as composition of environment, PH of solution, electrochemical potential and temperature which may influence on crack initiation and propagation.