1.概述 我国开发研制的耐磨钢,在很多场合成功地替代了高锰钢,但对于像风扇、冲击板这类对强度、韧性和安全系数要求很高的零部件,现有的耐磨钢仍不能满足使用要求。为此,本文通过优化设计研制一种高韧性低合金耐磨钢,以替代在不能充分发挥加工硬化能力又对韧性要求很高的冲击磨损条件下工作的高锰钢。其性能应达到:硬度大于 1. Overview China’s developed wear-resistant steel has successfully replaced high-manganese steel in many occasions. However, for parts such as fans and impact plates that require high strength, toughness and safety factor, the existing wear-resistant Steel still can not meet the requirements. Therefore, in this paper, a kind of high toughness low alloy wear-resistant steel was optimized and designed to replace the high manganese steel which work under the impact wear condition which can not give full play to work-hardening ability and toughness. Its performance should be: hardness is greater than