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通过对材料的试验检测及金相与电子断口分析 ,总结出调质工艺、正火 +调质及不同的加热与回火温度对LF3锻钢和LC3铸钢低温韧性的影响 ,为改善这 2种钢低温韧性的稳定性提供了良好的方法
The effects of quenching and tempering process, normalizing and quenching and tempering and different heating and tempering temperatures on the low temperature toughness of LF3 forged steel and LC3 cast steel were summarized through the testing of the material and the metallographic and electronic fracture analysis. The stability of the low temperature toughness of the steel provides a good method