from the conferences organized by TANGER Ltd. provisional website
The cobalt based alloy, Stellite, was deposited through the TIG welding process on the surface of a Duplex stainless steel to improve cavitation erosion resistance of engineering components that work in aggressive environments. Cavitation tests were performed using ultrasonic vibratory equipment which complies with requirements of the ASTM G32 – 2010 standard. The microstructure of the deposited layers consisted of complex carbides in a Co-Cr solid solution strengthened alloyed matrix with a dendritic structure which ensures high hardness and a significant increase in cavitation erosion resistance compared to the base metal.Keywords: Alloy Stellite, welding, cavitation, microstructure
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