摘要
In this work, the friction and wear properties of layered MoAlB ceramics sliding against Al2O3 and Inconel 718 alloy (Inc718) from room temperature (RT) to 800 °C were studied. The tribological behaviors of MoAlB ceramics are found to be greatly influenced by the test temperature and the counterpart. From RT to 800 °C, the MoAlB/Al2O3 tribo-pairs exhibit a higher friction coefficient and wear rate compared with those of the MoAlB/Inc718 tribo-pairs. Irrespective of the laminate structure, the tribological properties of MoAlB ceramics are associated with the oxides that are induced by tribo-oxidation reactions. For the MoAlB/Al2O3 tribo-pairs, abrasive wear and adhesive wear are responsible for the poor friction and wear behaviors. However, the tribo-film, which consists of oxides of Ni, Cr and Fe, can provide a good lubrication effect when MoAlB slides against Inc718.
源语言 | 英语 |
---|---|
页(从-至) | 14713-14720 |
页数 | 8 |
期刊 | Ceramics International |
卷 | 46 |
期 | 10 |
DOI | |
出版状态 | 已出版 - 7月 2020 |
已对外发布 | 是 |