摘要
作者对三种金属陶瓷(TiC-Ni,TiC-Ni-Mo,TiC-WC-Ni-Mo)与高速钢(W18Cr4V)在高温下的摩擦磨损性能进行了研究。摩擦磨损试验结果表明,在600℃高温下,TiC-Ni-Mo金属陶瓷与高速钢摩擦副的摩擦系数和磨损率最低。摩擦系数为0.19,磨损率分别为1.14×10^(-14)m^3/N·m和0.069×10^(-14)m^3N·m。摩擦轨迹的X射线衍射分析表明,这种低的摩擦系数和磨损率与TiC-Ni-Mo金属陶瓷表面上生成的氧化物膜的组成和结构有关,由MoO_3和NiO组成的致密的氧化物膜在高温下起到了润滑作用。
The tribological properties of three cermets (TiC-Ni, TiC-Ni-Mo, TiC-Ni-Mo-WC) mated with a high speed steel were evaluated on a Pin-on-disc type tester under high temperature. Test results indicate that the pair TiC-Ni-Mo cermet/high speed steel has lowest friction coefficient (0. 19) and smallest wear rates (disc,l. 14×10-14m3/N ?m;-pin,0. 069 ×10-14m3/N ?m) compared with other two pairs at high temperature 600℃ ?XRD (X-ray diffraction) analysis of wear scar on TiC-Ni-Mo Cermet proved the existence of an oxide film which consists of M0O3 and NiO. It was the composite oxide film that greatly reduced the friction coefficient and wear rates of TiC-Ni-Mo/high speed steel pair.
出处
《现代技术陶瓷》
CAS
1995年第2期22-25,12,共5页
Advanced Ceramics
关键词
金属陶瓷
高速钢
高温
摩擦学
Cermet high speed steel high temperature tribology
