Abstract—Friction Stir Processing (FSP) is a solid state process to modify the microstructure of the metals. FSP was carried out on the high strength aluminum alloy to investigate the defects such as cavitation. Temperature profiles were recorded to evaluate the maximum temperature during FSP. Macro and Microstructure examination was performed after FSP using optical microscopy. Cavitation was observed in all FSP samples at different locations and amount within the processing zone. High heat input samples reported more cavitation volume compared to low heat input sample. Pin geometry was found the governing factor for material flow and consequently the level of the cavitation during FSP.
 

Index Terms—aluminum, cavitation, friction, parameters, process, stir

Cite: Vivek V. Patel, Vishvesh J. Badheka, and Abhishek Kumar, "Cavitation in Friction Stir Processing of Al-Zn-Mg-Cu Alloy," International Journal of Mechanical Engineering and Robotics Research, Vol. 5, No. 4, pp. 317-321, October 2016. DOI: 10.18178/ijmerr.5.4.317-321