Tribological Properties of Arc-Evaporated NbAlN Hard Coatings
| Autor: | Peter Polcik, M. Rebelo de Figueiredo, Christian Mitterer, Robert Franz, M. Lechthaler |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Mechanical Engineering Metallurgy Wear coefficient Surfaces and Interfaces Tribology engineering.material Atmospheric temperature range Surfaces Coatings and Films Cathodic protection Wear resistance symbols.namesake Coating Mechanics of Materials engineering symbols Coefficient of friction Raman spectroscopy human activities |
| Zdroj: | Tribology Letters. 45:143-152 |
| ISSN: | 1573-2711 1023-8883 |
| DOI: | 10.1007/s11249-011-9876-5 |
| Popis: | Nb1−xAlxN hard coatings were synthesised by cathodic arc-evaporation with different Al contents to study its influence on the tribological properties. Ball-on-disc tests at temperatures up to 700 °C were performed and the recorded coefficient of friction was generally in the range from 0.8 to 1.0. Subsequent analysis of the coating wear track and the counterpart wear scar by optical profilometry and Raman spectroscopy revealed details on the wear behaviour of the tested coatings. The best wear performance for the Nb-rich coatings was in the temperature range of 300–500 °C, whereas at the maximum testing temperature the higher oxidation resistance with increasing Al content was beneficial in terms of wear resistance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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