Reserach of the mechanic-tribological characteristics of Ti<sub>3</sub>SiC<sub>2</sub>/TiC coatings after annealing
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....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
L.N. Gumilyov Eurasian National University
2021-11-01
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| Series: | Eurasian Journal of Physics and Functional Materials |
| Subjects: | |
| Online Access: | https://www.ephys.kz/jour/article/view/37 |
| Summary: | 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. |
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| ISSN: | 2522-9869 2616-8537 |