Interface Microstructure of Al-Fe Tubes Joint by Magnetic Pulse Welding

被引：1
|
作者：
XU Zhi-dan [1 ]
YU Hai-ping [1 ,2 ]
LI Chun-feng [1 ]
HAN Yu-jie [1 ]
机构：
[1] National Key Laboratory for Precision Hot Processing of Metals,Harbin Institute of Technology
[2] The Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology
来源：
Journal of Iron and Steel Research(International) | 2012年 / S1期
关键词：
magnetic pulse welding; dissimilar material; ultrafine grained microstructure;
D O I：
10.13228/j.boyuan.issn1006-706x.2012.s1.089
中图分类号：
TG457.14 [铝];
学科分类号：
080201 ; 080503 ;
摘要：
Magnetic Pulse Welding(MPW)is a very high speed process which produces solid-state welds.In this work,Welding interface microstructure of Al/Fe tubes by MPW and its influence factors were investigated.The equipment with a capacitor of 100μF was used under different voltages range from 8 kV to 15 kV.SEM and TEM observation were carried out to investigate microstructure of the welding interface.The results show that the dissimilar tubes(Al/Fe)could be welded with the optimum tapered angle of about 4 degree.The welding interface in Al/Fe joints exhibits a characteristic wavy morphology with wavelength of about 100μm.A new layer exists between base tubes consisting of Al and Fe elements.Ultrafme grained microstructure is founded near the welding interface.The results obtain in this work provide the fundamentals for the investigation of MPW mechanism of dissimilar tubes.
引用
收藏
页码：442 / 445
页数：4
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