FRICTION STIR WELDING OF AZ31 MAGNESIUM ALLOY

Abstract

Abstract: A series of controlled friction stir welds are manuf- actured successfully using 2.5 mm thick AZ31 magnesium rolled sheet material. The results show that the top surfaces of friction stirred welds are smooth and no crack and the bottom surfaces are full penetration. Results from metallurgical, micr-o-hardness, tensile and bend measurements clearly show that the friction stir welding process can create a segregated banded microstructure and high quality joints.(The ultimate tensile stren-gth canreach to 90% of base metal) The weld nugget is consisted of fine,equaixed grain.

Key words: AZ31 magnesium alloy, Friction stir welding, Mechanical properties, Micro-hardness, Microstructure

CLC Number:

TG453

Zhang Hua;Wu Lin;Lin Sanbao;Feng Jicai;Guo Heping. FRICTION STIR WELDING OF AZ31 MAGNESIUM ALLOY[J]. , 2004, 40(8): 123-126.

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FRICTION STIR WELDING OF AZ31 MAGNESIUM ALLOY

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