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采用示波冲击试验及断口形貌分析技术，研究了正火１２Ｃｒ１ＭｏＶ钢回火试样的夏比冲击断裂过程及能量消耗，提出了采用裂纹扩展功与萌生功之比做为衡量回火脆化敏感性及一般材料韧脆断裂状态的性能指标，该指标与冲击断口形貌特征有较好的对应关系。文中还对正火１２Ｃｒ１ＭｏＶ钢的回火脆化敏感性进行了评价。
The impact fracture and energy consumption of 12Cr1MoV steel tempered by 12Cr1MoV steel were studied by using oscillometric impact test and fracture morphology analysis. The ratio of crack propagation and sprouting work was proposed as a measure of temper embrittlement Sensitivity and toughness and brittle fracture of the general performance indicators, the index and impact fracture morphology has a good correspondence between. The article also on the normalizing 12Cr1MoV steel temper embrittlement susceptibility were evaluated.