Study of joining performance of dissimilar Mg alloys in friction stir welding

被引：16
|
作者：
Kumar Singh, Umesh [1 ]
Kumar Dubey, Avanish [1 ]
机构：
[1] MNNIT Allahabad, Dept Mech Engn, Prayagraj, India
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2021年 / 235卷 / 18期
关键词：
Friction stir welding; crown zone; magnesium alloys; microhardness; tensile strength; microstructure; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; MICROSTRUCTURE; AZ31B; SHEETS; JOINTS;
D O I：
10.1177/0954406220959096
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
AZ91 and AZ31 Mg alloys are used for lightweight structures with excellent specific strength. Fusion welding of Mg alloys is not suitable due to its high affinity towards oxygen. The present research investigates joining performance of AZ91 and AZ31 using indigenously developed friction stir welding set-up at different welding and rotational speed. The results show that highest value of microhardness within the welded zone was 95.92 Hv on the advancing (AZ91) side. The maximum tensile strength of the welded sample was 85.09% of AZ31. In all the cases, samples broke from the advancing side near the weld centre line.
引用
收藏
页码：3554 / 3562
页数：9
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