热处理工艺对Cr8钢组织与性能的影响  

Effect of heat treatment on microstructure and properties of Cr8 steel

作　　者：张岩[1] 赵爱民[1] 何建国[1] 尹鸿翔[1] 智超[1] 

机构地区：[1]北京科技大学冶金工程研究院,北京100083

出　　处：《金属热处理》2016年第1期79-84,共6页Heat Treatment of Metals

摘　　要：研究了不同淬火、回火温度对Cr8钢组织和性能的影响。结果表明,Cr8钢1050℃淬火组织为马氏体、碳化物和少量残留奥氏体。当Cr8钢在1050℃淬火,525℃回火后钢的硬度达到57 HRC,并且具有良好的韧性。Effects of different quenching and tempering temperature on microstructure and hardness of steel Cr8 were investigated. The results show that microstructure of steel Cr8 quenched at 1050 ℃ consists of martensite,granular carbide and minor retained austenite. The hardness value of the steel quenched at 1050 ℃ and tempered at 525 ℃ can be up to 57 HRC and the steel has better toughness.

关 键 词：Cr8钢 热处理 组织 硬度 

分 类 号：TG142.14[一般工业技术—材料科学与工程]