摘要
研究了18Cr2Ni4W钢渗碳后盐浴淬火工艺,通过对残留奥氏体以及硬度分析,得到了不同盐浴淬火工艺对性能的影响。结果表明:在一定温度范围内,奥氏体化温度提高则残留奥氏体增加、表面硬度下降、心部硬度提高;盐浴温度提高则残留奥氏体增加、表面硬度下降、心部硬度下降;风冷终止温度提高则残留奥氏体下降、表面硬度提高。试验表明选择810℃奥氏体化,160℃盐温,1wt%含水量,100℃风冷终止温度可以获得最佳综合性能。
The salt bath quenching process of 18Cr2Ni4W steel after carburizing was studied. The effects of property were obtained through analysis retained austenite and hardness. In the given temperature range, the results show that the retained austenite and core hardness will increase with the increasing austenitizing temperature, face hardness will decrease with the increasing austenitizing temperature. The retained austenite will increase with the increasing salt bath temperature, face and core hardness will decrease with the increasing salt bath temperature. The retained austenite will decrease with the increasing air cooling final temperature, the face hardness will increase with the increasing air cooling final temperature. The test show that we can obtain the best comprehensive performance by choosing austenitizing temperature of 810 ℃, the salt bath temperature of 160 %, water content of lwt% and air cooling final temperature of 100 ℃.
出处
《金属热处理》
CAS
CSCD
北大核心
2017年第5期184-188,共5页
Heat Treatment of Metals
