Abstract
For investigating the effects of dissimilar welding, friction stir welding (FSW) is performed to join 5083(83) and 5052(52) aluminum alloys in this study. Both of them are Al-Mg alloy but with quite different Mg content and microstructural characteristics. The results of tensile test show that the tensile strength and uniform elongation of friction stirred material are slightly lower than base metals. Uniform and refined equaxial grains could be observed in welding zone, and the coarsening intermetallic compounds of 5083 are refined and spheroidized after welding. From above mentioned results, an excellent join part could be acquired via FSW.
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