新型低成本超高强低合金耐磨钢研究及其工业化应用

来源期刊：钢铁2010年第8期

论文作者：王昭东 邓想涛 曹艺 王国栋 顾林豪 宋增强

文章页码：61 - 64

关键词：耐磨钢； 热处理； 显微组织； 力学性能

Key words：abrasion resistant steel； heat-treatment process； microstructure； mechanical property

摘    要：在普通C-Mn钢Q345成分的基础上,添加适量的Cr、B元素,通过控制轧制+离线热处理方法,生产出布氏硬度达400且具有良好强韧配合的新型超高强低合金耐磨钢,分析了在不同的热处理条件下其组织和性能的演变规律。结果表明,试验钢在淬火态、200~300℃回火,力学性能均达到或超过NM400标准要求;将其试验结果在国内某钢厂进行了批量生产试制,试制产品综合性能良好。

Abstract: The controlled rolling and off-line reheat quenching process were adopted to produce up to 400 Brinell hardness which having good strength and toughness with a new low-alloy high-strength abrasion-resistant steel.The composition of this steel,which was based on general Q345,added appropriate amount of Cr,B.Microstructure and mechanical properties with different heat treatment conditions were analyzed.The results showed that test steel can meet the standard of NM400 when it at the quenching condition and tempering temperature of 200 to 300℃.The finding were carried out at a domestic steel factory,industrially products showed good performance.