Research on Joint Strength of Aluminum Alloy Welded by FSW

Chuan Hong Luo; Ting Chen; Wei Ping Peng

doi:10.4028/www.scientific.net/AMM.590.249

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 590Research on Joint Strength of Aluminum Alloy...

Research on Joint Strength of Aluminum Alloy Welded by FSW

Abstract:

The joint of 2219-T6 aluminum alloy plate was obtained by friction stir welding, and the microstructures and mechanical properties of the joint were investigated. The causes of the weakened joint strength in friction stir welding were analyzed and summarized correspondingly. The tensile properties show that the transverse tensile strength of the joint can reach about 70% of the base metal and the elongation can reach about 7%. The main reason of the weakened strength is due to the plastic damage of metal, followed by the defects generated in the nugget zone and the growth of θ phase in the heat affected zone.

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Periodical:

Applied Mechanics and Materials (Volume 590)

Pages:

249-253

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.590.249

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Online since:

June 2014

Authors:

Chuan Hong Luo*, Ting Chen, Wei Ping Peng

Keywords:

Aluminum Alloy 2219, Friction Stir Welding, Mechanical Property, Microstructure

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