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本文通过对Cr12MoV零件失效分析,认为钢中棱角状碳化物的存在以及尺度偏大、晶界弱化、材料韧性偏低是影响寿命的主要原因。
In this paper, through the failure analysis of Cr12MoV parts, it is considered that the existence of carbide in the steel and the large scale, the grain boundary weakening and the low material toughness are the main reasons that affect the life.