|About this Abstract
||Materials Science & Technology 2012
||Surface Protection for Enhanced Materials Performance: Science, Technology and Applications
||Understanding Cavitation Erosion Mechanism in Friction Stir Processed Mild Steel
||Harpreet Singh Grewal, Anupam Agrawal, Harpreet Singh, Harpreet Singh Arora
|On-Site Speaker (Planned)
||Harpreet Singh Grewal
Friction stir processing (FSP) is emerging as a micro-structural refinement tool which may possibly lead to nano-crystalline structured materials. FSP has shown promising results for light metals and alloys, whereas there is almost no attempt to use it for processing of steels. Mild steel is commonly used for numerous applications in fluid machineries, where it has to deal with cavitating environment. The present study is mainly focused upon the cavitation erosion response of FSPed mild steel. Cavitation erosion testing was performed the utilizing ultrasonic tester operating at 20 KHz frequency, with distilled water as a working medium. Gravimetric observations showed that FSPed steel possess higher resistance to erosion in comparison to un-processed steel. Further in-depth analysis of the possible mechanism responsible for the erosion process has also been investigated using scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and micro-hardness tester.