环境作用动力学在应力腐蚀断裂中的应用

摘要

目的：研究材料的应力腐蚀断裂时间。方法应用环境作用动力学理论，求解材料的应力腐蚀断裂时间函数。结果从环境作用动力学理论得到了材料的应力腐蚀断裂时间函数，并对 AZ61和 AZ80镁合金进行了试验验证。结论环境作用动力学理论可以描述镁合金材料应力腐蚀断裂时间；AZ61镁合金抗应力腐蚀性能优于AZ80镁合金。%Objective To study the material cracking time of stress corrosion.Methods Theory of environmental effect dy-namics was applied to solve the function of the material cracking time of stress corrosion.Results The function of the material cracking time under stress corrosion was acquired from the theory of environmental effect dynamics. In addition, an experimen-tal verification was carried out to AZ61 and AZ80 magnesium metal alloy.Conclusion The theory of environmental effect dy-namics can be used to describe the material cracking time of magnesium metal alloy under stress corrosion; the anti- stress cor-rosion function of AZ61’s surpasses that of AZ80.