ISSN   1004-0595

CN  62-1095/O4

高级检索
铜基合金—TiC金属陶瓷复合堆焊层摩擦磨损性能研究[J]. 摩擦学学报, 2001, 21(5): 330-334.
引用本文: 铜基合金—TiC金属陶瓷复合堆焊层摩擦磨损性能研究[J]. 摩擦学学报, 2001, 21(5): 330-334.
Friction and Wear Behavior of Cu-based Alloy/TiC Cermet Composite Hardfacing Materials[J]. TRIBOLOGY, 2001, 21(5): 330-334.
Citation: Friction and Wear Behavior of Cu-based Alloy/TiC Cermet Composite Hardfacing Materials[J]. TRIBOLOGY, 2001, 21(5): 330-334.

铜基合金—TiC金属陶瓷复合堆焊层摩擦磨损性能研究

Friction and Wear Behavior of Cu-based Alloy/TiC Cermet Composite Hardfacing Materials

  • 摘要: 考察了铜基合金/TiC金属陶瓷复合堆焊材料的耐磨性及其影响因素,采用透射电子显微镜和扫描电子显微镜观察分析了复合堆焊材料的结构及磨损表现形貌。结果表明:以TiC金属陶瓷为硬质相的堆焊材料的耐磨性优于以YG硬质合金为硬质相的堆焊材料,其原因是稀土氧化物可细化基体金属组织,改善界面结合,使堆焊层的耐磨性改善;随着堆焊中硬质相含量的增加,耐磨性能提高,当金属陶瓷体积分数为55%-60%时,堆焊层的耐磨性最佳;基体金属的磨损主要呈现显微切削和犁沟特征,而金属陶瓷的流失形式主要表现为界面处TiC颗粒的脱落。

     

    Abstract: The friction and wear behavior of Cu based alloy/TiC cermet composite hardfacing material was investigated. The effect of load and rare earth oxide on the triological properties of the composite materials was examined, while the worn surface morphologies were observed with a scanning electron microscope. The results show that rare earth oxide can change the structure and improve the properties of hardfacing materials. The Cu based alloy/TiC cermet has considerably higher wear resistance than the composite material with YG8 as the hard phase. The wear resistance of the hardfacing layer increased with an increase in the content of cermet. The best wear resistance was obtained at a volume fraction of TiC cermet 55%~60%. The wear mechanisms of the composites materials include ploughing and spalling of some carbide particles on the worn surfaces. The spalling of TiC micro particles at the interface has significant influence on the wear resistance.

     

/

返回文章
返回