Parametric study of the mechanical properties of nanocrystalline TiN/CrN multilayer coatings with a special focus on the effect of coating thickness and substrate roughness
| Autor: | T.D. Atmani, Corinne Nouveau, Hamid Aknouche, M.S. Bouamrene, M. Gaceb |
|---|---|
| Přispěvatelé: | Université M'Hamed Bougara Boumerdes (UMBB), Laboratoire Bourguignon des Matériaux et Procédés (LABOMAP), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM) |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Scanning electron microscope General Physics and Astronomy chemistry.chemical_element coatings 02 engineering and technology Substrate (electronics) surfaces engineering.material Sciences de l'ingénieur 010402 general chemistry 01 natural sciences interfaces Coating [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] structure Composite material roughness Surfaces and Interfaces General Chemistry TiN/CrN Tribology Nanoindentation Sputter deposition 021001 nanoscience & nanotechnology Condensed Matter Physics thickness Nanocrystalline material 0104 chemical sciences Surfaces Coatings and Films adhesion chemistry engineering films 0210 nano-technology Tin |
| Zdroj: | Surfaces and Interfaces Surfaces and Interfaces, Elsevier, 2021, 23, pp.101001. ⟨10.1016/j.surfin.2021.101001⟩ |
| ISSN: | 2468-0230 |
| DOI: | 10.1016/j.surfin.2021.101001 |
| Popis: | International audience; In a plot to improve the performance of steel mechanical parts subject to aggressive friction solicitations, three batches of deposits of TiN and CrN layers on steel substrates with two different roughnesses have been obtained using reactive DC magnetron sputtering. The present study was conducted to determine the effect of varying TiN/CrN multilayer coatings thickness (varying modulated period Λ and interlayer thickness), on their mechanical and tribological properties. The morphological and the structural properties were analyzed using scanning electron microscopy (SEM) and X-ray diffraction (XRD). The nanoindentation measurements displayed improvement in hardness (> 40 GPa) and Young’s modulus (> 600 GPa) for the coating with Λ ≅ 12 nm (TiN Λ/2 ≅ 7.5 nm + CrN Λ/2 ≅ 4.5 nm) thickness and the higher number (300) of interfaces, deposited on the rougher substrate. Its low coating damage under the scratch test, associated with its estimated adhesion work (Wad), indicated a good cohesive/adhesive strength and improved structural and mechanical properties. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect