The effect of solution on fracture toughness of 7A55 aluminum alloy was investigated by optical microscopy, tensile test, Kahn tear test,scanning electron microscopy (SEM) and transmission electron microscopy (TEM).

• 采用金相组织观察、拉伸实验、Kahn撕裂试验、扫描电镜、透射电镜等方法研究固溶处理对7A55铝合金断裂韧性的影响。