High-temperature tribological behaviors of MoAlB ceramics sliding against Al2O3 and Inconel 718 alloy

Zengguang Yu, Hui Tan, Shuai Wang, Jun Cheng, Qichun Sun, Jun Yang, Weimin Liu

科研成果: 期刊稿件文章同行评审

29 引用 (Scopus)

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
46
10
DOI
出版状态已出版 - 7月 2020
已对外发布

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