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1·采用拉伸试验、电导率测试及电镜观察等方法，研究了重固溶制度、再时效制度对7175铝合金组织与性能的影响。
The effects of re ageing on microstructure and properties of 7175 aluminum were studied by means of SEM?
2·研究了锻坯高温处理对7175铝合金锻件抗应力腐蚀性能的影响，并对其影响机理进行了分析。
The effects of a kind of special high temperature treatment on stress corrosion resistance of 7175 aluminum alloy forgings were studied, and the mechanism of the effects was explained.