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本文利用电镜分析了30CrNi3Mo渗碳钎钢的心部组织为板条马氏体和板条间的薄膜状残余奥氏体,并根据此组织对钢的K_(IC)、冲击韧性和裂纹扩展速度进行了分析和讨论。
In this paper, the microstructure of 30CrNi3Mo carburized brazing steel was analyzed by means of electron microscopy. The residual austenite in the martensite and the lath was studied. The K_ (IC), impact toughness and crack growth rate Analyzed and discussed.