The interface investigation and tribological mechanism of TiB2-TiC-Ni/TiAl/Ti Functionally Gradient Materials prepared by FAPAS Process

摘要：

TiB2-TiC-Ni/TiAl/Ti functionally gradient materials were prepared by Field-activated pressure-assisted synthesis (FAPAS). Microstructure, elements distribution and phase composition of the interface were mainly investigated by SEM, EDS and OM. The results showed that the particles of TiB2-TiC composite ceramics were fine and homogeneously dispersed. The friction coefficient and wear rate of the synthesized ceramic were lower at elevated temperature and high load. The oxide films of Fe2O3, TiO2 and B2O3 formed during the friction process play an important role in the lubrication. Oxidized products greatly reduce the friction coefficient of TiB2-TiC-Ni ceramics at 400℃ or above.

关键词： TiB2-TiC composite ceramics FGM FAPAS combustion synthesis friction

作者: L.F.Hu L.J.Liang S.P.Chen P.F.Xue F.M.Wang Q.S.Meng

作者单位: College of Material Science and Engineering, Taiyuan University of Technology,Taiyuan 030024, China College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 745-751

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）