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本文利用系列冲击试验,研究了二次加热正火对锻造态非调质钢35MnVN冲击韧性的影响。通过组织结构和断口形貌的观察,分析了影响冲击韧性的主要因素;讨论了显微组织对韧脆转变温度的作用。
In this paper, a series of impact tests were conducted to study the effect of secondary normalizing on the impact toughness of 35MnVN steel in forged state. The main factors influencing the impact toughness were analyzed through the observation of the microstructure and the fracture morphology. The effect of the microstructure on the toughness and brittle transition temperature was also discussed.