理化检验-物理分册2024，Vol.60Issue(4)：5-8,4.DOI:10.11973/lhjy-wl202404002
真空气体淬火热处理对粉末冶金高速钢S390硬度的影响
Effect of vacuum gas quenching heat treatment on hardness of powder metallurgy high speed steel S390
雷洋 1王兴 1田伟 1陈方 1巩天喆1
作者信息
- 1. 陕钢集团产业创新研究院有限公司,汉中 723000
- 折叠
摘要
Abstract
The vacuum gas quenching heat treatment of powder metallurgy high speed steel S390 was carried out.The feasibility of vacuum gas quenching heat treatment and its effect on the hardness of S390 steel under certain cooling pressure and cooling rate were discussed.The results show that the effective thickness of powder metallurgy high speed steel S390 was 20 mm.Under the condition of cooling pressure of 0.8 MPa and cooling rate of 3 ℃/s,S390 steel could be vacuum quenched,and the steel would not crack.Under the same conditions,the hardness of S390 steel after four times tempering was 1.2 HRC less than that after salt bath heat treatment,and its red hardness was 3.1～3.7 HRC less than that after salt bath heat treatment.关键词
真空气体淬火/S390钢/红硬性/二次硬化/晶粒度Key words
vacuum gas quenching/S390 steel/red hardness/secondary hardening/grain size分类
矿业与冶金引用本文复制引用
雷洋,王兴,田伟,陈方,巩天喆..真空气体淬火热处理对粉末冶金高速钢S390硬度的影响[J].理化检验-物理分册,2024,60(4):5-8,4.
