Title: Analysis on the microstructure and mechanical properties of plank aluminum/magnesium alloy by friction stir welding with auxiliary infrared heat-source
Abstract: The plank AZ31B-H24 magnesium alloy and 6061-T6 aluminum alloy were dissimilarly welded by common friction stir welding and friction stir welding with auxiliary infrared heat-source respectively. The microstructure, phase composition and mechanical properties were tested and contrast analyzed. The results showed that compared with common friction stir welding, friction stir welding with auxiliary infrared heat-source could refine the microstructure and significantly improve the mechanical properties, specifically could make tensile strength increase by 25.4%, make yield strength increase by 20.3% and make elongation increase by 2.4%. Moreover, tensile strength of the dissimilar joint by ultrasonic friction stir welding could achieve 90.3% of that of AZ31B-H24 magnesium alloy base metal, and achieve 85.3% of that of 6061-T6 aluminum alloy base metal.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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