【摘要】 用反应铸造技术，在铸钢件表面合成了厚度为４．２ｍｍ的Ｆｅ－ＴｉＣ表面复合材料。该表面复合材料中同时含有铬的碳化物和片状石墨，ＴｉＣ的颗粒大小为１～３μｍ，在亚表面层中，ＴｉＣ的体积分数高达３８％，由表及里，Ｆｅ－ＴｉＣ表面复合材料的组织和成分皆呈梯度分布，逐渐过渡到母体合金。在重载干滑动磨损条件下它显示了非常好的耐磨性能更多还原

【Abstract】 Using a react casting technique,an FeTiC surface composite,consisting of chromiumcarbides and flake graphites,with a thickness of 4.2mm,was synthesized on a surface of cast steel,The volume fraction of TiC particles was up to 38% in the subsurface layer and the particle size was in the range 13m.From outside in,the structure and composition of the FeTiC surface composite took on a gradient distribution and transformed gradually to that of a master alloy.Under the condition of dry slipping with a heavy load,the FeTiC surface composite offers virtually unique wear resistance.更多还原