航空材料学报2016，Vol.36Issue(6)：35-39,5.DOI:10.11868/j.issn.1005-5053.2016.6.006
热处理对9 Cr13 Mo3 Co3 Nb2 V组织与硬度的影响
Effect of Heat Treatment on Microstructure and Hardness of 9 Cr13 Mo3 Co3 Nb2 V Steel
霍登平 1梁志凯2
作者信息
- 1. 西安飞行自动控制研究所 检测试验中心，西安710065
- 2. 北京航空材料研究院，北京100095
- 折叠
摘要
Abstract
Effect of heat treatment on the microstructure and hardness of 9Cr13Mo3Co3Nb2V steel was studied systematically by metal-lographic examination and hardness testing. The results show that after quenching, cryogenic treatment and multiple tempering, the re-tained austenite of 9Cr13Mo3Co3Nb2V steel is adequately transformed into tempered martensite, and the significant secondary harden-ing effect is brought. Consequently the steel gains stable microstructure and high hardness. Secondary carbide begins to precipitate and the secondary hardening effect emerges when the tempering temperature is above 350℃, and the tempering hardness reaches the maxi-mum value when tempering temperature range is from 480 ℃ to 520 ℃.关键词
9Cr13Mo3Co3Nb2V钢/二次硬化/热处理/显微组织/硬度Key words
9Cr13Mo3Co3Nb2V steel/secondary hardening/heat treatment/microstructure/hardness分类
矿业与冶金引用本文复制引用
霍登平,梁志凯..热处理对9 Cr13 Mo3 Co3 Nb2 V组织与硬度的影响[J].航空材料学报,2016,36(6):35-39,5.
