Continuous nanoscale Al2Fe transition layer strengthened magnesium-steel spot joints

被引：10
作者：
Chen, J. [1 ]
Amirkhiz, B. Shalchi [1 ]
Zhang, R. [1 ]
机构：
[1] Nat Resources Canada, CanmetMAT, Calgary, AB, Canada
来源：
MATERIALS LETTERS | 2017年 / 196卷
关键词：
Fusion spot welding; Interfaces; Intermetallic phase; Mg alloy; Steel; Zn coating; ZN-COATED STEEL; MECHANICAL-PROPERTIES; MG; INTERLAYER; MICROSTRUCTURE; INTERFACE;
D O I：
10.1016/j.matlet.2017.03.020
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cold metal transfer welding was employed to produce Mg to steel spot joints. A continuous and compact plate-like intermetallic Al2Fe layer, with a thickness of 100-300 nm, was formed at the interface between solidified AZ61 Mg filler alloy and Zn-coated DP600 steel sheet, resulting in a very high tensile-shear strength of up to 180 MPa. On the contrary, when 100 nm thick, island-type Al2Fe was observed at the interface between Mg and uncoated DP600 steel sheet, a much lower joint strength was observed regardless of energy input. (C) 2017 Published by Elsevier B. V.
引用
收藏
页码：242 / 244
页数：3
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