【摘要】 用真空熔烧方法在45钢表面烧结Co基合金 WC复合涂层,测定几种不同WC含量涂层截面的显微硬度和涂层的耐磨性,并分析涂层显微硬度与耐磨性的关系。用X射线能谱仪(EDS)实测WC颗粒熔烧后化学成分的变化,分析WC硬质相与Co基合金的结合情况。结果表明,Co基合金 WC复合涂层在WC含量小于60%时,其显微硬度和耐磨性与WC含量成正比。这为耐磨涂层的实际应用提供了依据。更多还原

【Abstract】 Using fusing sintering method, alloy coatings were covered on the surface of carbon steel. A series of Co base alloyWC coatings have been obtained on the surface of 45 steel with vacuum melting method. The microhardness charactersitic of several coatings with different WC contents were observed. Their wear resistance was studied. The relation between microhardness and wear resistance was analyzed. Also chemical composition of WC hard phase was measured with EDS and combination of WC and Co base alloy was anayzed. On the basis of test results, in less 60% content, the more WC, the higher microhardness and wear resistance. The application of composite coatings is suggested.更多还原