Abstract The effect of processing parameters on temperature distribution and microstructure was evaluated after friction stir welding of AZ31 magnesium alloy plates. Temperature distributions were recorded using thermocouples inserted into the drilled holes. Microstructures of the specimens were evaluated using optical microscopy and grain size and other factors were measured. Microhardness results were evaluated using Vicker’s micro hardness tester. Microstructure results revealed that grain size was reduced and grain structure became fine after friction stir welding. Keywords: Friction stir welding, grain size, microhardness, microstructure, thermocouplesCite this Article Piyush Gulati, Dinesh Kumar Shukla, Gurpreet Singh Phull. Influence of Process Parameters on Temperature Distribution and Microstructure of Friction Stir Welded Magnesium Alloy. Journal of Thermal Engineering and Applications. 2016; 3(3): 27–33p.
