摘要
研究了模具用WC20CrMoWV钢结硬质合金热处理后组织与机械性能的关系,试验结果表明在1100～1250℃淬火并于640～660℃回火后,硬度HRC64～65;抗弯强度2150MPa;冲击韧性8J/cm2;具有理想的综合机械性能,其耐磨性与同等硬度的W6Mo5Cr4V2高速钢相比,提高25%。
The effect of the microstructure on the property of the WC20CrMoWV steel bonded hard alloy used on die by heat treatment is studied. The tested results are as follows. The hardness, the flexural strength and the impact toughness of the steel with ideal overall mechanical property is HRC64～65, 2150MPa and 8J/cm^2 respectively, after quenched at 1100 ～1250℃ and tempered at 640～660℃. The wear resistance of the steel after treated improves 25% contrasting with W6MoSCr4V2 high-speed steel with the same hardness.
出处
《硬质合金》
CAS
北大核心
2007年第1期28-32,共5页
Cemented Carbides
关键词
钢结硬质合金
热处理
组织
性能
steel bonded hard alloy,heat treatment,microstructure property
