Study on mechanical, micro-, and macrostructural characteristics of dissimilar friction stir welding of AA6061-T6 and AA7075-T6

被引：55

作者：

Bahemmat, P. ^{[1
,2
,3
]}

Haghpanahi, M. ^{[1
]}

Besharati, M. K. ^{[2
]}

Ahsanizadeh, S. ^{[1
]}

Rezaei, H. ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Dept Mech Engn, Tehran, Iran

[2] Univ Tehran, Dept Mech Engn, Tehran, Iran

[3] MAPNA Generator Engn & Mfg Co, Karaj, Iran

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | 2010年 / 224卷 / B12期

关键词：

friction stir welding; welding speed; macrostructure; microstructure; microhardness; mechanical properties; alloy positions; ALUMINUM-ALLOYS; TENSILE PROPERTIES; WELDED-JOINTS; KISSING-BOND; MICROSTRUCTURE; TOOL; PARAMETERS; BEHAVIOR; FATIGUE; ZONE;

D O I：

10.1243/09544054JEM1959

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This research presents the effect of welding speed on dissimilar joints of AA7075-T6 and AA6061-T6 alloys. The weld quality was evaluated through observations of the macrostructure. The mechanical properties of the welds, including the ultimate strength, the percentage of elongation, and the microhardness variations, were determined for different welding speeds. Also the effect of the positions of the two alloys on the mechanical properties was investigated. In addition, during the friction stir welding (FSW) process, the peak temperatures were measured in order to indicate the relation between the peak temperature and the hardness distribution at the heat-affected zone (HAZ). Accordingly, the influence of the welding speed on the developed grain size was elucidated by the micro structural analysis.

引用

页码：1854 / 1865

页数：12

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