4Cr5Mo2V热作模具钢组织和性能研究

Research on Microstructure and Property of Hot Working Die steel 4Cr5Mo2V

研究了不同热处理工艺对新型热作模具钢4Cr5Mo2V钢的组织和性能的影响,并与H13钢作了对比。结果表明:经1030℃淬火,4Cr5Mo2V钢硬度可达到57.7 HRC,晶粒度达到9级;经1030℃淬火,600℃回火两次后该钢保持与H13钢硬度相同的情况下具有更好的冲击韧性。

The influence of the different heat treatment processes on the microstructures and properties of the new type of hot - working die steel 4CrSMo2V was studied, and the comparison with H13 steel was also made. The results showed that after quenching at 1030℃, the hardness of steel 4CrSMo2V can reach 57.7HRC, the grain size is as fine as No.9;quenched at 1030℃ and then tempered twice at 600℃, the steel mentioned above developed better impact toughness than that of steel H13 ,while having the same hardness level as that of the latter.