铸造技术2017，Vol.38Issue(10)：2389-2392,4.DOI:10.16410/j.issn1000-8365.2017.10.019
热处理对高硼低碳铸钢组织和耐磨性的影响
Effect of Heat Treatment on Microstructure and Wear Resistance of High Boron Low Carbon Cast Steel
蒋桂芝 1向文华2
作者信息
- 1. 商丘职业技术学院汽车建筑工程系,河南商丘476000
- 2. 商丘技师学院机械系,河南商丘476000
- 折叠
摘要
Abstract
The effect of quenching temperature at 940,1 000 and 1 060 ℃ on microstructures,mechanical properties and wear resistance of high boron steel was studied.The results show that under the different quenching temperatures,the microstructure of the steel is composed of martensite,boride and small amount of retained austenite.As the quenching temperature increases,boride transforms fiom isolated poles,blocks and granular to a continuous network;the hardness of the steel decreases firstly and then reduces,whereas the weight loss decreases firstly and then increases.When the steel is water quenched at 1 000 ℃×l.5 h and tempered at 200 ℃×3 h,the hardness reaches maximum of 53 HRC and the wear weight drops to a minimum of 14.2 mg,and the hardness and wear resistance increase by 1.07 times and 2.28 times respectively compared that when the steel water quenched at 940 ℃.关键词
高硼低碳铸钢/热处理工艺/显微组织/硬度/耐磨性Key words
high boron low carbon cast steel/heat treatment process/microstructure/hardness/wear resistance分类
矿业与冶金引用本文复制引用
蒋桂芝,向文华..热处理对高硼低碳铸钢组织和耐磨性的影响[J].铸造技术,2017,38(10):2389-2392,4.
