Friction and wear of diamond materials and other ceramics against metal
| Autor: | S.C. Hayden, Richard Lloyd Mehan |
|---|---|
| Rok vydání: | 1981 |
| Předmět: |
Materials science
Metallurgy Diamond Surfaces and Interfaces Surface finish engineering.material Condensed Matter Physics Grain size Surfaces Coatings and Films chemistry.chemical_compound Hardened steel chemistry Mechanics of Materials Tungsten carbide visual_art Materials Chemistry visual_art.visual_art_medium Silicon carbide engineering Surface roughness Ceramic |
| Zdroj: | Wear. 74:195-212 |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/0043-1648(81)90163-0 |
| Popis: | Utilizing the Falex rotating ring and block technique, we evaluated the performance of several diamond materials and alumina, silicon carbide and a cemented tungsten carbide sliding against hardened steel 4620 and a nitrided 12% Cr steel. All tests were performed at 50 rev min −1 lubricated and unlubricated, in both continuous and 75° oscillating ring motion. The lubricating fluid was mineral oil with a kinematic viscosity of 72 cSt. It was found that ground diamond compacts, irrespective of the grain size in the compacts, resulted in the best combination of low friction and low metallic wear rates under both lubricated and unlubricated conditions. Metal wear resulting from diamond-metal sliding was found to be dependent on the compact surface roughness, and an initial roughness exceeding about 0.36 μm (14 μin) center-line average led to severe wear under some conditions. In the dry condition, all the ceramics showed high frictional forces and some degree of wear in both metal and ceramic, with the exception of alumina which did not itself develop a macroscopic wear scar. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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