Effect of Tool Offset on the Microstructure and Properties of AA6061/AZ31B Friction Stir Welding Joints

被引：7

作者：

Liu, Huachen ^{[1
]}

Chen, Yikun ^{[1
]}

Yao, Zhenhua ^{[2
]}

Luo, Feixiang ^{[2
]}

机构：

[1] China Tobacco Hubei Ind Co Ltd, New Tobacco Prod Engn Ctr, Wuhan 430040, Peoples R China

[2] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China

来源：

METALS | 2020年 / 10卷 / 04期

关键词：

aluminum alloy; magnesium alloy; friction stir welding; microstructure; tensile strength; MECHANICAL-PROPERTIES; AL; ALLOYS;

D O I：

10.3390/met10040546

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Friction stir welding was carried out on AA6061/AZ31B alloy, and the influence of tool offset on microstructures and mechanical properties of the joints was studied. The results showed that preferred properties were obtained when Mg was placed in the Advancing Side (AS) and offset was positioned into Mg. The distribution of Al3Mg2 and Al12Mg17 intermetallic compounds (IMCs) could be improved with offset in a certain range. The tensile strength of the joints was elevated with the increase of the offset due to the superior distribution and diminished size of IMCs, and when the offset was 1.5 mm, the joint strength reached the maximum value of 107 MPa. The microhardness of the stirring zone decreased with the increased offset.

引用

页数：9

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