Friction Stir Lap Welding of Magnesium Alloy and Zinc-Coated Steel

被引：40
|
作者：
Chen, Y. C. [1 ]
Nakata, K. [1 ]
机构：
[1] Osaka Univ, Joining & Welding Res Inst, Ibaraki 5670047, Japan
来源：
MATERIALS TRANSACTIONS | 2009年 / 50卷 / 11期
关键词：
welding; mechanical properties; microstructure; metals; MECHANICAL-PROPERTIES; MICROSTRUCTURAL EVOLUTION; STAINLESS-STEEL; CARBON-STEEL; MG ALLOY; TEXTURE;
D O I：
10.2320/matertrans.M2009022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
AZ31 Mg alloy and zinc-coated steel were lap welded using friction stir welding technology. The microstructures and mechanical properties of the joints were examined. The lap.;hear tensile test results showed that the welding speed had a significant effect on the failure loads of the joints at the rotation speed of 1500 rpm. The maximum failure loads of 3.4kN, 65% of that of the zinc-coated steel base material, could be obtained when the welding speed was 150 mm/min. Microstructure analysis showed that the intervention of zinc coat promoted the formation of Mg-Zn low-melting-point eutectic structure at the interface. The joining mechanism and the role of Zn coat on friction stir lap welding of Mg alloy and zinc-coated steel were put forward. [doi: 10.2320/matertrans.M2009022]
引用
收藏
页码：2598 / 2603
页数：6
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