铸造技术2012，Vol.33Issue(4)：408-411,4.
热处理对含硼低合金高速钢组织和性能的影响
Effect of Heat Treatment on Structure and Property of B-Bearing LAHSS
摘要
Abstract
The effect of quenching and tempering temperature on the structure and property of B-bearing LAHSS low alloy high speed steel LAHSS was investigated. The results show that as-cast B-bearing LAHSS consists of martensite and borocarbide. Eutectic borocarbide distributes in a network along the grain boundary. Eutectic borocarbide begins to break after quenching. The breaking tendency is more obvious with the increase of quenching temperature. Moreover, a part of boron element dissolves into the matrix after quenching, which promotes the strengthen of matrix. The change of tempering temperature has no obvious effect on eutectic borocarbide. However, martensite begins to precipitate secondary borocarbide with the increase of tempering temperature, which leads to the decrease of alloy solid solubility in the matrix. The hardness of alloy increases with the increase of quenching temperature. When tempering temperature increase, the hardness of alloy begins to dcrease.关键词
含硼低合金高速钢/轧辊/热处理/显微组织Key words
B-bearing LAHSS/ roll/ heat treatment/ microstructure分类
矿业与冶金引用本文复制引用
娄松山,刘冠宇,符寒光..热处理对含硼低合金高速钢组织和性能的影响[J].铸造技术,2012,33(4):408-411,4.基金项目
感谢北京市教委科研项目(铁-硼抗磨合金制备技术研究)和云南省院省校科技合作专项(高硼低合金高速钢复合轧辊研究与产业化,2010AD012)的资助. （铁-硼抗磨合金制备技术研究）
