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用真空液相烧结法在钢基体表面制备了TiC-Mo2FeB2系复合涂层,测定了TiC-Mo2FeB2系复合涂层-钢基体界面结合强度及界面结合区的显微硬度变化,研究了复合涂层的显微组织与界面微观结构和界面区元素分布。结果表明,涂层与钢基体之间具有较高的结合强度,当TiC含量为8%时结合强度最高为820.66 MPa,显微维氏硬度为12.06 GPa,在复合涂层-钢基体结合界面处,存在一个由涂层高硬度到钢基体低硬度的狭窄过渡区,并且两相之间形成了良好的冶金结合。
TiC-Mo2FeB2 composite coating was prepared on the surface of steel substrate by vacuum liquid-phase sintering. The bonding strength of TiC-Mo2FeB2 composite-steel substrate interface and the microhardness of interface were measured. The effects of composite coating The microstructure and interface microstructure and the interface area element distribution. The results show that the bonding strength between the coating and the steel substrate is high, the highest bonding strength is 820.66 MPa and the micro Vickers hardness is 12.06 GPa when the content of TiC is 8% , There is a narrow transition from a high hardness of the coating to a low hardness of the steel substrate and a good metallurgical bond is formed between the two phases.