Application of Taguchi based entropy weighted TOPSIS method for AZ 91D magnesium alloy friction stir welded joints with cerium addition at interface
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The alloy needed for friction stir welding must be able to fracture during the solidification and joining processes. Toovercome some of these problems solid state welding processes have been identified as alternative and Friction stir weldingprocess (FSW) is one found to be more prominent to join simple to complex geometries. In this investigation, FSW of AZ91Dmagnesium alloy is undertaken with cerium microparticles embedded into the weldment in order to produce a metal matrixcomposite at the stir zone. Design/methodology/Approach: AZ 91D magnesium alloy materials are friction welded by keepingcerium powder between the plates to be joined before the joining process. Magnesium alloy is the type of raw material thatused for various mechanical industries since it has the good thermal conductivity, and lightweight. The solid state joiningprocess employs friction stir welding. The commercial Mg alloys consists of various elements like Al, Mn, and Zn. TaguchiL9 OA is employed for the experimentation and three factors namely rotational speed, Feed of Tool and tilt angle of tool areused. The results are analyzed with entropy weighted TOPSIS method. The overall outcome is predicted and confirmation testresults are compared with it.
Abstract
The alloy needed for friction stir welding must be able to fracture during the solidification and joining processes. Toovercome some of these problems solid state welding processes have been identified as alternative and Friction stir weldingprocess (FSW) is one found to be more prominent to join simple to complex geometries. In this investigation, FSW of AZ91Dmagnesium alloy is undertaken with cerium microparticles embedded into the weldment in order to produce a metal matrixcomposite at the stir zone. Design/methodology/Approach: AZ 91D magnesium alloy materials are friction welded by keepingcerium powder between the plates to be joined before the joining process. Magnesium alloy is the type of raw material thatused for various mechanical industries since it has the good thermal conductivity, and lightweight. The solid state joiningprocess employs friction stir welding. The commercial Mg alloys consists of various elements like Al, Mn, and Zn. TaguchiL9 OA is employed for the experimentation and three factors namely rotational speed, Feed of Tool and tilt angle of tool areused. The results are analyzed with entropy weighted TOPSIS method. The overall outcome is predicted and confirmation testresults are compared with it.
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