摘要
考察了回火温度对ZG75Cr2MnNiMo耐磨钢组织及性能的影响。结果表明，淬火条件一定时，选择250～300℃低温回火，可以获得马氏体、贝氏体和残留奥氏体混合组织，在保证一定韧性的基础上获得较高的硬度。和530℃高温回火情况相比，耐磨性明显提高，是用于生产E型磨煤机磨球的更为合适的热处理工艺。
At the same hardening condition, the influence of tempering temperature on the microstructure and properties of steel 75Cr2MnNiMo is studied. The results show that after 250~300℃ tempering treatment, the microstructure of the steel is martensite、bainite and retained austenite. The higher hardness is obtained with proper toughness. Comparing with 530℃ tempering treatment, the steel has the better wear resistance, and this heat treatment is more suitable to treat balls of E-type pulverizer.
出处
《金属热处理》
CAS
CSCD
北大核心
1995年第2期27-28,共2页
Heat Treatment of Metals
