铁路扣件用含铌弹簧钢感应加热淬火的组织与性能  

Microstructure and properties of Nb-bearing spring steel by induction quenching for rail fastening

作　　者：张朝磊[1] 刘雅政[1] 周乐育[1] 张玮[2] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]首钢技术研究院,北京100041

出　　处：《金属热处理》2011年第10期82-84,共3页Heat Treatment of Metals

基　　金：中信-CBMM铌钢研究与开发项目(2007RMJS-D031)

摘　　要：研究了含铌弹簧钢扣件感应淬火和空气电阻炉加热淬火的显微组织及硬度分布特点。结果表明:感应加热可以改善试验钢的组织均匀性,避免空气炉加热过程中出现的表面脱碳现象;含铌弹簧钢适宜的感应淬火温度为1000℃。The microstructural characteristics and microhardness distribution of Nb-bearing spring steel after induction quenching and furnace quenching were investigated.The results show that microstructure uniformity is improved by induction heating and the surface decarburization during heating process is eliminated.And the appropriate heating temperature for induction quenching is 1000 ℃.

关 键 词：含铌弹簧钢 感应淬火 显微组织 硬度 

分 类 号：TG162.79[金属学及工艺—热处理]