Investigation on the metallurgical mechanical thermal and corrosion behaviour of friction stir welded dissimilar aa5083 h111 and aa6082 t6

Abstract

Aluminium is the third most available element in the earth crust. newlineIt has been assessed that 8% of the earth layer is filled with aluminium. The newlineabundant availability, mechanical advantages and cost effective nature of this newlinematerial makes it compete with all other materials for different applications. newlineAluminium alloys are a perfect lightweight material with high specific newlinestrength used far and wide in the industry for their workability, good newlinecorrosion resistance with exceptional physical and mechanical properties. newlineThe applications of these lightweight materials are quite important in the newlineshipbuilding industry and automobile industries due to their performance newlineimprovement and reduction in emission. newlineAluminium alloy AA5083-H111 is a non-heat treatable and newlinemajorly strain hardened aluminium-magnesium (Al-Mg) alloy. Magnesium newlineis the primary alloying element in the AA5083-H111 with 4 to 4.90% weight newlinerange. Aluminium alloy AA6082-T6 is a heat treatable Aluminium- newlineMagnesium-Silicon (Al-Mg-Si) alloy. The AA6XXX series alloys have newlinemedium strength and good formability. Magnesium and Silicon are the main newlinealloying elements in the AA6082-T6 with 0.6 to 1.2% and 0.7 to 1.3% weight newlinerange. These two aluminium alloys are used large and wide in the industries newlineas similar and dissimilar alloys. Joining of non-heat treatable and heat newlinetreatable aluminium alloys with the assistance of fusion welding process is newlinedifficult because of the defects associated with it. newline