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本文对TC_4合金的蠕变残余变形与疲劳寿命的关系进行了初步探讨。结果表明:TC_4合金在400℃下发生的残余变形与疲劳寿命之间呈对数线性关系。对予测钛合金的使用寿命有重要意义。
In this paper, the relationship between the creep residual deformation and fatigue life of TC_4 alloy has been discussed. The results show that there is a logarithmic linear relationship between residual strain and fatigue life of TC_4 alloy at 400 ℃. Titanium alloy life expectancy is of great significance.