Heat treatment of hypersonic metallisation coatings from false alloys on the basis of alloy Ni80Cr20
The structural-phase state and tribomechanical characteristics of hypersonic metallisation (HM) coatings from false alloys ‘Ni80Cr20 + Al99,3’ and ‘Ni80Cr20 + 08Mn2Si’ in the initial state and after annealing at 550° С and 650°С were investigated. It is shown that annealing of the coating from the f...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Gdynia Maritime University
2020-12-01
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| Series: | Scientific Journal of Gdynia Maritime University |
| Subjects: | |
| Online Access: | https://ojs.umg.edu.pl/index.php/sjgmu/article/view/38 |
| Summary: | The structural-phase state and tribomechanical characteristics of hypersonic metallisation (HM) coatings from false alloys ‘Ni80Cr20 + Al99,3’ and ‘Ni80Cr20 + 08Mn2Si’ in the initial state and after annealing at 550° С and 650°С were investigated. It is shown that annealing of the coating from the false alloy ‘Ni80Cr20 + Al99,3’ leads to a significant increase in its microhardness and wear resistance. In particular, the microhardness of the coating increases ≈ 2 times, and the wear resistance ≈ 19 times in comparison with the initial state. Annealing of the coating from ‘Ni80Cr20 + 08Mn2Si’ leads to a decrease in its microhardness by 1.4 times, and wear resistance decreases by 3.0 times compared with the initial state. |
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| ISSN: | 2657-5841 2657-6988 |