Tribological qualification of cobalt-free coatings for pressurized water reactor primary-circuit gate valve applications
| Autor: | Jean Denape, F. Sudreau, L. Lelait, L. Cachon |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Materials science
Pressurized water reactor Metallurgy Detonation chemistry.chemical_element Surfaces and Interfaces General Chemistry Tribology engineering.material Condensed Matter Physics Gate valve Surfaces Coatings and Films law.invention chemistry Coating law Stellite Materials Chemistry engineering Cobalt Tribometer |
| Zdroj: | Surface and Coatings Technology. 85:163-169 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/0257-8972(95)02672-x |
| Popis: | The object of this study is to qualify cobalt-free alternative alloys for valve applications. This paper focuses on tribological characterizations of numerous coatings deposited by different processes. Tests were performed on two experimental rigs. A selection of the best coatings was done using an alternating “pin on rail” tribometer. Then tests were performed on a second rig which simulates the wear sustained by gate valves in the primary circuit of a pressurized water reactor. A 65% Cr3C2+35% Ni-Cr coating, deposited using a detonation gun technology, seems promising for finding a substitute for Stellite 6. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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