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以 Ｎｉ８ＯＣｒ２０、Ｃｒ_３Ｃ_２、Ａｒ、ＣａＦ_２／ＢａＦ_２四元混合粉末为原材料，利用激光熔敷技术在ｒ－ＴｉＡｌ金属间化合物合金Ｔｉ－４８Ａｌ－２Ｃｒ－２Ｎｂ表面上制得了以ｒ一ＮｉＣｒ为基体、以初生Ｍ_７Ｃ_３及Ｍ_（２３）Ｃ_６为耐磨相、以弥散分布颗粒Ａｇ、ＣａＦ_２或ＣａＡｇＦ_４为自润滑相的高温自润滑耐磨复合材料涂层，涂层显微硬度大大提高且与基体呈冶金结合。
Ni-Cr-CrAl-2Cr-2Nb alloy was prepared on the surface of r-TiAl intermetallic compound alloy Ti-48Al-2Cr-2Nb by using Ni8OCr20, Cr3C2, Ar and CaF2 / BaF2 ternary mixed powders as raw materials. M_7C_3 and M_ (23) C_6 are wear-resistant phases. The high-temperature self-lubricating wear-resistant composite coating with dispersed particles Ag, CaF_2 or CaAgF_4 as the self-lubricating phase greatly increases the microhardness of the coating and metallurgically bonds with the matrix.