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CAVITATION EROSION BEHAVIOR OF WC–Co COATINGS ON TURBINE STEEL DEPOSITED BY COLD SPRAY

Author

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  • HARVINDER SINGH

    (Department of Mechanical Engineering, Chandigarh University Gharuan, Punjab, India†Department of Mechanical Engineering, Chandigarh Group of Colleges, Landran Mohali Punjab, India)

  • MANOJ KUMAR

    (Department of Mechanical Engineering, Chandigarh University Gharuan, Punjab, India)

  • RAJDEEP SINGH

    (��Department of Mechanical Engineering, Chandigarh Group of Colleges, Landran Mohali Punjab, India)

Abstract

A renowned hard coating material (WC–Co) has the potential to overcome cavitation erosion (CE) in hydromachinery components. Hydro turbines that employ silt-filled water for electricity generation create a lot of metal waste due to erosion and cavitation caused by the particles. There is an urgent need for repair of hydropower components that have undergone damage due to cavitation. In this investigation, tungsten carbide composite coatings were produced on 13Cr4Ni (CA6NM) stainless steel substrates using the cold spray method. In order to create high-quality coatings, nitrogen was used as the propellant gas. The coating microstructures were characterized by EDS, SEM XRD, and microhardness tests. Cold-sprayed WC–Co-based coatings were exposed to enhance the cavitation erosion resistance of CA6NM steel. Cold spray coating prepared with WC-12/17Co powder has shown excellent wear-resistant properties due to higher hardness and lower porosity.

Suggested Citation

  • Harvinder Singh & Manoj Kumar & Rajdeep Singh, 2025. "CAVITATION EROSION BEHAVIOR OF WC–Co COATINGS ON TURBINE STEEL DEPOSITED BY COLD SPRAY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 32(12), pages 1-12, December.
    • Handle: RePEc:wsi:srlxxx:v:32:y:2025:i:12:n:s0218625x25500052
    DOI: 10.1142/S0218625X25500052
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