65Mn钢在热处理过程中硬度及其参数优化研究  

Investigation of Hardness and Parameters Optimization of 65Mn Steel During Heat Treatment Process

作　　者：杜永英[1] 马业鹏 

机构地区：[1]沈阳化工大学机械工程学院,辽宁沈阳110142 [2]米其林沈阳轮胎有限公司,辽宁沈阳110141

出　　处：《铸造技术》2015年第8期2001-2002,共2页Foundry Technology

摘　　要：研究65Mn弹簧钢在不同热处理条件下的硬度,利用数学模型建立试验钢硬度与热处理性能的关系,优化热处理参数。结果表明,随着回火温度的增加,试验钢硬度下降;延长奥氏体化时间,其硬度先增加后缓慢下降;当淬火加热温度为851.5℃,时间为18.5 min,回火温度为147.0℃,试验钢硬度最大。The hardness of 65 Mn steel used for spring was tested under different heat treatment conditions to optimize steel properties. The results show that, by increasing of the tempering temperatures, the hardness of test steel decrease; the increase of austenite time can cause the increase of steel hardness but then the hardness gradually decrease by further increasing time; the steel has the highest hardness at quenched temperatures at 851.5 ℃ for 18.5 min and tempered at147.0 ℃.

关 键 词：65MN钢 热处理参数 优化设计 

分 类 号：TG161[金属学及工艺—热处理] TG142.1[金属学及工艺—金属学]