M. Yugandhar, Prabhakar Kammar



Study and Experimental Work on Friction Stir Welding of Similar and Dissimilar AZ31/ AZ91 Mg Alloys

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Friction stir welding efficiently bonded two exceptional magnesium (Mg) plates, one with less aluminum (AZ31/AZ91) content as well as the opposite more aluminum (AZ91/AZ31) (FSW). The impact of procedure elements on warm crack improvement was tested. At most efficient procedure situations at one-of-a- kind parameters (AZ-ninety one/AZ-ninety one and AZ-31/AZ-31 comparable aggregate) with one-of-a-kind rpm like (1600,1400,1200) and one-of-a-kind feed charge like (25,50,75) mm/min feed under this sound weld 1400 rpm with 25 mm/min feed,), a valid metallurgical joint with great grains and dispersed (Mg17Al12) phase inside the nugget zone become achieved and parallel(AZ-31/AZ-ninety one multiple mixtures). A growing fashion in hardness measures has also revealed extended aluminum dissolution in the nugget region. The AZ31 Mg alloy aspect (advancing) had a distinct touch between the nugget sector and the Thermo mechanical affected quarter (TMAZ), but no longer the AZ91 Mg alloy side (withdrawing). it is viable to draw conclusions based on the findings. FSW can be used to sign up for assorted metals, including difficult-to-method metals like Mg alloys, and warm cracking may cause completely prevented by deciding on suitable system parameters to gain a sound joint. The impact of manner optimizing values for the joining of AZ91/AZ31 Mg alloy plates at some point of friction stir welding (FSP) became investigated on this observation. A hit joint was installed at a device circular motion of 1100 RPM also device journey space of 25 millimeter/min. The aggregate for holder along with tool rotational and travel speeds has had a large impact on the fabric waft tactics in the nugget region. The microstructural analyses revealed that the joint improvement changed in most cases as a result of the mechanical blending of the additives. The nugget sector changed discovered to be terrible, and there has been a sharp interface on the joint. Microhardness assessments throughout the weld joint addining indicated a lack of entire metallurgical bonding. The presence of magnesium and aluminum turned into revealed by way of X-ray diffraction material examination on weld area. From this result of the early observations, it may be concluded that FSP may be used to combine AZ91 Mg alloy and Az31 alloy; despite the fact that complex demanding situations in fabric blending require additional exploration.


Similar, Dissimilar, Az-31/Az91, FSW Process, Nugget Zone, Thermo mechanical, HAZ, TAMZ


Cite this paper

M. Yugandhar, Prabhakar Kammar. (2022) Study and Experimental Work on Friction Stir Welding of Similar and Dissimilar AZ31/ AZ91 Mg Alloys. International Journal of Theoretical and Applied Mechanics, 7, 38-49


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