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综述了 7xxx系列Al合金的应力腐蚀开裂机理和影响应力腐蚀开裂行为的因素 ,讨论了应力腐蚀开裂过程的微观结构变化及其与应力腐蚀开裂敏感性的关系 .在不降低合金力学性能的前提下 ,提高耐应力腐蚀开裂性将使该系合金有广泛的应用前景
The mechanism of stress corrosion cracking of 7xxx series Al alloys and the factors affecting the stress corrosion cracking behavior are reviewed.The microstructure changes of stress corrosion cracking process and their relationship with the stress corrosion cracking susceptibility are discussed.Under the premise of not decreasing the mechanical properties of the alloy, , To improve the resistance to stress corrosion cracking resistance of the alloy will have a wide range of applications