Establishing Empirical Relation For Microhardness During Solid State Joining of Mg Alloys

Abstract

Friction stir welding (FSW) is an appropriate technique for fabricating flawless welds, especially for light weight alloys. The various input parameters play significant role for the resulting welds and determining the mechanical and metallurgical features of fabricated joints. In the current work, the microhardness observed for FSWed AZ31B Mg alloy is represented. The empirical relationship between the process variables and the output responses i.e. microhardness were established. The weld settings to maximize the microhardness were optimized and reported.