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通过化学分析、金相检验、力学性能测试和断口分析等方法对ZG25Mn钢制牵引部耳子断裂进行了检验分析,结果表明,含铝量过高是导致牵引部耳子断裂的主要原因。
The fracture of ZG25Mn steel traction part was tested by chemical analysis, metallographic examination, mechanical property test and fracture analysis. The results show that the high aluminum content is the main cause of the fracture of the traction part.