Daniel Mutașcu, I. Mitelea, I. Bordeasu, I. Uțu, C. Crăciunescu
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CAVITATION RESISTANT LAYERS FROM CORODUR 65 ALLOY DEPOSITED BY TIG WELDING ON DUPLEX STAINLESS STEEL
The CORODUR 65 alloy delivered in the form of flux-cored wire electrode was deposited by TIG welding process on the surface of a duplex stainless steel in order to improve the cavitation erosion resistance of the technical components which are working in aggressive environments. Cavitation tests were performed using ultrasonic vibrating equipment that meets the requirements of the ASTM G32 - 2010 standard. The microstructure of the deposited layers consisted of complex carbides in a hardened alloy matrix with Cr solid solution which provides a high hardness and a significant increase of the cavitation erosion resistance compared to the base metal.
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