Open Access Conference Proceedings

Welding of aluminum alloys with austenitic stainless steel is considered one of the most complex phenomena and is specific to high precision industries such as: aerospace, rail, cars and marine structures, as inflexible tolerance are required during the assembly of various engineering components. Joining of such alloys through conventional fusion welding processes is a difficult task because of the metallurgical incompatibility. On the other hand, friction stir welding (FSW) with rotary tool of this two materials, has given rise to substantial scientific and industrial importance, as it has the capacity to manufacture products with good quality joints.This paper aims to highlight the benefits of the FSW process applied to this combination of materials. A particular attention is given to the microstructural evolution and microhardness in the transition areas between the austenitic stainless steel and the welding core.

Keywords: Friction stir welding, dissimilar alloys, microstructure

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