Reserach of the mechanic-tribological characteristics of Ti3SiC2/TiC coatings after annealing
| Autor: | Bauyrzhan Rakhadilov, D.B. Buitkenov, D. Erbolatuly, Zh.B. Sagdoldina |
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| Rok vydání: | 2020 |
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| Zdroj: | Eurasian Journal of Physics and Functional Materials, Vol 4, Iss 1, Pp 86-92 (2020) |
| ISSN: | 2616-8537 2522-9869 |
| Popis: | This article investigates the influence of thermal annealing on microhardness and wear resistance of the surface of steel U9/Y9 protected by a composite coating Ti 3 SiC 2 /TiC obtained by detonation sputtering. Thermal annealing was performed in the range of temperatures 700-900 ◦ C during 1 hour. Following annealing the formation of TiO 2 and an increase in the phase content of Ti 3 SiC 2 are observed. Higher microhardness was obtained in coatings subjected to annealing at 800 ◦ C, which can be explained by an increase in the content of carbonized titanium. As the annealing temperature rises further, the thickness of the oxide layer increases, leading to a decrease in the microhardness for the coatings annealed at 900 ◦ C. According to the results of tribological tests, formation of the oxide increases wear resistance of Ti 3 SiC 2 /TiC composite surface coatings. |
| Databáze: | OpenAIRE |
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