High-temperature tribological behaviors of MoAlB ceramics sliding against Al2O3 and Inconel 718 alloy
| Autor: | Hui Tan, Jun Yang, Shuai Wang, Weimin Liu, Jun Cheng, Zengguang Yu, Qichun Sun |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Friction coefficient Materials science Process Chemistry and Technology Alloy Abrasive 02 engineering and technology Tribology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials visual_art 0103 physical sciences Materials Chemistry Ceramics and Composites Lubrication visual_art.visual_art_medium Adhesive wear engineering Ceramic Composite material 0210 nano-technology Inconel |
| Zdroj: | Ceramics International. 46:14713-14720 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.02.275 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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