Dry Sliding Wear Behaviour of Austenitic Stainless Steel Coated with Cobalt based Alloy

Pushpinderjit Singh, Amit Handa, Surendra Singh


Surface coating techniques have a very important place in metal technologies. The aim of surface coating operations is to improve and enhance the properties of a material. In this study AISI 316L stainless steel was coated with cobalt base Stellite-6 alloy powder using Detonation Gun thermal spray process. After the coating deposition, the wear resistance of surface- alloyed layer was investigated using the pin on disc dry sliding wear test. The surface morphology of worn specimens was examined using scanning electron microscopy (SEM). The results obtained from all the tests were compared to those of bare AISI 316L specimens. For comparison of substrate and coated material, graphs were plotted. The wear resistance of coated specimens improved remarkably as compared
to the bare specimens.


Thermal spray coating, AISI 316L, Stellite-6 alloy, Dry sliding wear, Scanning Electron Microscopy (SEM)

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