Mechanical and high-temperature tribological properties of CrAlN/TiSiN multilayer coating deposited by PVD
| Autor: | Lunlin Shang, Guangan Zhang, Xueqian Cao, Liguo Wang, Haitao Hu, Shuzhen Zhang, Yuan Yu, Wensheng Li, Chunling Li |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Process Chemistry and Technology Bilayer Ion plating Oxide chemistry.chemical_element Tribology Nitride engineering.material Microstructure Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Coating Materials Chemistry Ceramics and Composites engineering Composite material Tin |
| Zdroj: | Ceramics International. 47:29285-29294 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2021.07.093 |
| Popis: | Hard nitride coatings have the prospect of acting as protective layers for cutting tools because of their excellent mechanical properties and wear resistance. To enhance the mechanical, tribological, and high-temperature oxidation properties, the structural design of the coating is important. In this study, TiSiN, CrAlN/TiSiN bilayer and CrAlN/TiSiN multilayer coatings were deposited on the surface of high-speed steel by multi-arc ion plating technology. The microstructure, phase composition, mechanical properties and high-temperature tribological properties of prepared coatings were analyzed. Results indicated that the TiSiN and CrAlN/TiSiN bilayer coatings contain TiN phases and the CrAlN/TiSiN multilayer coating contains three main phases of TiN, AlN and CrN. The CrAlN/TiSiN multilayer coating possesses a denser microstructure than the other two coatings. The multilayer structure improves the cohesive and bonding strength of the coating by reducing the shear stress. The CrAlN/TiSiN multilayer coating exhibits a stable coefficient of friction and excellent wear resistance during high-temperature friction. The formation of TiO2 and Al2O3 oxide layers on the surface of the coating in a high-temperature environment contributes to the desired tribological properties of the coatings. |
| Databáze: | OpenAIRE |
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