Abstract
Abstract In this study, the influence of main laser cladding parameters on the final microstructure of cladded WC-NiCrBSi coating is discussed. As the used powder is the blend of 60% tungsten carbide spherical particles and 40 % NiCrBSi matrix, the carbides’ morphology and distribution in the final coating are dependent on laser cladding parameters. The variability of coating’s microstructure strongly influenced their wear resistance. In the paper, the influence of laser processing parameters on final coating microstructure is studied. The functional properties of cladded coatings are evaluated by dry sand rubber wheel test ASTM G-65. The wear resistance of the coating is dependent on the amount of undissolved carbides particle in the coating.
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