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采用拉—压疲劳试验及拉伸试验,通过对空隙和抗拉等方面的考察,研讨了一次碳化物对冷作模具钢疲劳寿命的影响。
The effects of primary carbides on the fatigue life of cold-worked die steel were investigated by means of tension-compression fatigue test and tensile test.