ZGMn13钢辙叉与U71Mn钢钢轨闪光焊接接头组织  

Microstructure of Flash Welding Joint of ZGMn13 Steel Crossing with U71Mn Steel Rail

作　　者：张继明[1] 张福成[1] 胡白桃[1] 

机构地区：[1]燕山大学材料科学与工程学院,河北秦皇岛066044

出　　处：《金属热处理》2001年第9期36-38,共3页Heat Treatment of Metals

基　　金：国家科委重点攻关项目 (71 1 0 3477 2 0 2 9)

摘　　要：利用X射线衍射、金相和透射电镜分析方法 ,分析了ZGMn13钢辙叉和U71Mn钢钢轨加介质闪光焊接接头组织。结果表明 ,ZGMn13钢焊接热影响区内无碳化物析出 ,U71Mn钢接头无马氏体产生 ,介质熔合区内形成宽约 5 0 μm的纳米晶组织 。The joint microstructure of ZGMn13 steel crossing and U71Mn steel rail and welding material were analysed by means of X ray diffraction,metallograph and TEM.It is shown that there is no carbide in HAZ of ZGMn13 steel,no martensite in HAZ of U71Mn steel.A nanocrystalline layer with about the width of 50μm is formed in the bond area of the welding materials and a little martensite is strain induced in the bond area of ZGMn13 steel.

关 键 词：闪光焊接 应变诱发马氏体 纳米晶 铁路辙叉 高锰钢 

分 类 号：U213.62[交通运输工程—道路与铁道工程] TG457.11[金属学及工艺—焊接]