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本文利用中频热压烧结法制备了TiC-Ni、TiC-Ni-Mo和TiC-Ni-MO-WC3种高温自润滑性金属陶瓷材料。栓-盘摩擦磨损试验结果表明,TiC-Ni-Mo金属陶瓷的高温自润滑性最好,其在600℃时的摩擦系数为0.19,磨损率为1.14×10~(-14)m~3/N·m,偶件(材料W18Cr4V,HRC62)的磨损率为0.069×10~(-14)m~3/N·m。作者指出,这类材料的高温自润滑性与其摩擦表面上生成的氧化膜的组成和结构相关。此外,本文还就Mo、WC对材料物理机械性能的影响进行了探讨。
In this paper, high temperature self-lubricating cermet TiC-Ni, TiC-Ni-Mo and TiC-Ni-MO-WC were prepared by IF sintering. The results of friction and wear test showed that the friction coefficient of TiC-Ni-Mo cermet was 0.19 at 600 ℃ and the wear rate was 1.14 × 10 ~ (-14) m ~ 3 / N · m, the wear rate of the couple (material W18Cr4V, HRC62) is 0.069 × 10 ~ (-14) m ~ 3 / N · m. The authors note that the high temperature self-lubricity of such materials is related to the composition and structure of the oxide film formed on the tribological surface. In addition, this paper also discussed Mo, WC physical and mechanical properties of materials were discussed.