对不同尺度WC的WC-17Co粉末，采用大气等离子喷涂制备了涂层，分析比较了三种涂层的SEM形貌、显微组织结构、显微硬度、结合强度及摩擦学性能。结果表明，随着原始喷涂粉末的WC尺度增大，涂层的力学性能下降，涂层的磨损机理也发生改变。%Coatings were sprayed by plasma spraying with WC-17Co powders produced by different scale WC particle. Three kinds of coatings were analysed and compared by SEM pattern, microstructure, microhardness, bonding strength and wear resistance respectively. The results show that with the WC particle size increasing, the mechanical property of the WC-17Co coating is goes down and the wear mechanism of the WC-17Co coating is changes.
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