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对20 CrMo钢在双相区淬火后回火得到的组织与常规性能的关系进行了研究。其目的是要找到使20 CrMo钢的各种性能配合最好的适当的淬火温度。试验结果表明:20 CrMo钢在820℃淬火后回火,强韧性匹配很好,认为20 CrMo钢临界淬火加热温度选为820℃为最佳。
The relationship between the microstructure and conventional properties of 20CrMo steel after quenching in two-phase zone was studied. The aim is to find the appropriate quenching temperature that best matches the various properties of the 20 CrMo steel. The results show that 20 CrMo steel is tempered at 820 ℃ and then tempered. The toughness matches well. It is considered that the critical quenching temperature of 20 CrMo steel is 820 ℃.