AlN改善车轮钢韧性的可行性分析  

Feasibility Analysis of AlN Improving the Toughness of Wheel Steels

作　　者：孙曼丽[1,2] 江波[1,2] 陈刚[1,2] 钟斌[1,2] 赵海[1,2] 鲁松[3] 

机构地区：[1]高性能轨道交通新材料及安全控制安徽省重点实验室,安徽马鞍山243000 [2]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243000 [3]马鞍山钢铁股份有限公司车轮公司,安徽马鞍山243000

出　　处：《钢铁研究学报》2014年第8期53-56,共4页Journal of Iron and Steel Research

基　　金：安徽省科技计划资助项目(11Z0101022)

摘　　要：长期以来,车轮钢在满足强度和硬度的前提下,其韧性很难稳定地满足要求,韧性已成为提高车轮整体使用性能的关键制约因素。通过简要介绍第二相钉扎晶界原理以及影响第二相质点析出的因素,提出通过控制第二相质点AlN的析出来改善车轮钢韧性具有可行性。For a long time, the strength and hardness of wheel steels can meet the requirement, but the toughness is hard to maintain a required level. So the toughness of the steel has become a key restraint for improving wheel＇s performance. The principle of second-phase particle pinning grain boundary and influence factors for precipitation of second-phase were briefly introduced, and it is proposed that controlling the precipitation of AIN particles can improve the toughness of wheel steels.

关 键 词：车轮钢 韧性 ALN 

分 类 号：U270.33[机械工程—车辆工程] U270.41[交通运输工程—载运工具运用工程]