摘要
研究了不同淬、回火工艺对新型冷作模具钢CPR和D2钢组织与性能的影响。结果表明,CPR钢在共晶碳化物偏析上较D2钢有所改善。CPR和D2钢在1050℃奥氏体化后,油冷淬火的硬度分别达到64.7和65.0 HRC,更高温下淬火CPR钢仍有较高的硬度。不同温度回火试验钢存在明显的二次硬化效应,CPR钢回火稳定性较D2钢好,热处理温度范围较宽。
The effect of heat treatment process on microstructure and properties of CPR and D2 cold work steels was investigated. The results show that the distribution of eutectic carbides in CPR steel is more uniform than that in D2 steel. After heating at 1050 ℃ ,then quenching in oil, the hardness of CPR and D2 steel is 64. 7 and 65 HRC, respectively. Both CPR and D2 steel have obvious secondary hardening effect during tempering. Temper resistance of CPR steel is much better than D2 steel, and the temperature ranges for heat treatment of CPR steel is more broad.
出处
《金属热处理》
CAS
CSCD
北大核心
2012年第10期44-49,共6页
Heat Treatment of Metals
关键词
冷作模具钢
CPR钢
组织
硬度
热处理
cold work die steel
CPR steel
microstructure
hardness
heat treatment
