抗表面接触疲劳剥离新型重载机车车轮的开发  

Development of a new heavy-haul locomotive wheel with resistance to surface contact fatigue spalling

作　　者：姚三成 江波[1,2] 刘学华 赵海[1,2] 邹强 陈刚[2,3] YAO Sancheng;JIANG Bo;LIU Xuehua;ZHAO Hai;ZOU Qiang;CHEN Gang(Technology Center,Ma’anshan Iron&Steel Co.,Ltd.,Ma’anshan 243003,Anhui,China;Anhui Technology Innovation Center of Rail Transit Key Components,Ma’anshan 243003,Anhui,China;Technology Center,Baowu Group Masteel Rail Transit Materials Technology Co.,Ltd.,Ma’anshan 243003,Anhui,China)

机构地区：[1]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243003 [2]轨道交通关键零部件安徽省技术创新中心,安徽马鞍山243003 [3]宝武集团马钢轨交材料科技有限公司技术中心,安徽马鞍山243003

出　　处：《宝钢技术》2023年第2期1-8,共8页Baosteel Technology

摘　　要：踏面剥离是重载机车车轮一种普发性的表面损伤形式,直接关系到车轮镟修频次和使用寿命。基于对实际服役车轮损伤模式的识别,从协调平衡滚动接触疲劳(RCF)与磨损性能的竞争关系着手,在现有高强度级别的碳素钢车轮基础上,通过钒微合金化和与之适配的热处理工艺,开发出高屈强比的新材质机车车轮,研究了其显微组织、力学性能、循环塑性和表面接触疲劳行为。Tread spalling is a common surface damage of heavy-haul locomotive wheels,which is directly related to the re-profiling frequency and service life of the wheels.According to the damage mode recognition of the actual service wheels,the coordination and balance of the competitive relationship between rolling contact fatigue(RCF)and wear properties were proposed.A new material locomotive wheel with a high yield ratio was developed on the basis of the existing high-strength grade carbon steel wheel,through vanadium microalloying and suitable heat treatment process,and its microstructure,mechanical properties,cyclic plasticity,and surface RCF behavior were studied.

关 键 词：踏面剥离 棘轮效应 塑性应变累积 钒微合金化 屈强比 

分 类 号：TG142.14[一般工业技术—材料科学与工程]