Hard surfacing layers of WC-Co/Ni-based self-fusing alloy (SFA), Ni-based SFA and Cr3C2-NiCr alloy were formed using powder and an electron beam. When the layers were examined using the Vickers hardness test, a sand erosion test and an immersion corrosion test, they were found to display high erosion and corrosion resistance. The WC-Co/Ni-based SFA, Ni-based SFA, and Cr3C2-NiCr alloy layers displayed high hardness of 1400HV, 780HV and 900HV, respectively.
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Issue Section:Coating Treatments