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High-temperature tribological behaviors of MoAlB ceramics sliding against Al2O3 and Inconel 718 alloy.
- Source :
-
Ceramics International . Jul2020:Part A, Vol. 46 Issue 10, p14713-14720. 8p. - Publication Year :
- 2020
-
Abstract
- In this work, the friction and wear properties of layered MoAlB ceramics sliding against Al 2 O 3 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/Al 2 O 3 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/Al 2 O 3 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 46
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 143192104
- Full Text :
- https://doi.org/10.1016/j.ceramint.2020.02.275