Study on the Microstructure and Mechanical Properties of Welding Joints of 7A05 Aluminum Alloy by FSW

Dong Gao Chen; Jin He Liu; Zhi Hua Ma; Wu Lin Yang

doi:10.4028/www.scientific.net/AMM.496-500.110

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 496-500Study on the Microstructure and Mechanical...

Study on the Microstructure and Mechanical Properties of Welding Joints of 7A05 Aluminum Alloy by FSW

Abstract:

The7A05 aluminum alloy of the 10mm thickness was welded by the friction stir welding. The microstructure and mechanical Properties of the welded joint was researched by the optical microscope, etc. The results showed: the microstructure of the weld nugget zone and the thermal mechanically affected zone were refined as the welding speed increasing when the rotate speed is constant. As the welding speed increasing the strength of extension of the welded joint is increasing at first and then stable basically. but the yield strength had no obvious change.

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Periodical:

Applied Mechanics and Materials (Volumes 496-500)

Pages:

110-113

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.496-500.110

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Online since:

January 2014

Authors:

Dong Gao Chen, Jin He Liu, Zhi Hua Ma, Wu Lin Yang

Keywords:

7A05 Al Alloy, Friction Stir Welding (FSW), Mechanical Property, Microstructure

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