吕超* ，赵莉萍，钦祥斗

( 内蒙古科技大学材料与冶金学院，内蒙古包头014010)

关键词: 淬火; 回火; 冲击韧性; 硬度

中图分类号: TG161 文献标识码: A

摘要: 研究不同的淬火和回火温度对材料性能的影响. 结果表明: 经过850 ℃ /45 min 水淬+ 430 ℃ /60 min 回火处理后，试样具有最佳的冲击韧性和硬度的配合.

Effect of heat treatment process on properties of medium carbon low alloy wear resistant steel

LV Chao，ZHAO Li-ping，QIN Xiang-dou

( Materials and Metallurgy School，Inner Mongolia University of Science and Technology，Baotou 014010，China)

Key words: quenching; tempering; toughness; hardness

Abstract: The effect of different quenching and tempering temperatures on mechanical properties of low alloy wear resistant steel was investigated．The results indicate that after quenching at        850     ℃ for 45 min and tempering at        430     ℃ for 60 min，the specimens had the best combination of impact toughness and hardness．