Structure and Tribological Properties of CrTiAlCN Coatings with Various Carbon Contents
- Nanjing University of Aeronautics and Astronautics, State Key Laboratory of Mechanics and Control of Mechanical Structures (China)
Multi-component CrTiAlCN coatings with different carbon contents were deposited on AISI M2 high-speed steels using unbalanced magnetron sputtering via adjusting the C{sub 2}H{sub 2} flow rates, and their microstructures and mechanical properties were characterized by using SEM, EDS, XRD, Vickers hardness tester and scratch tester, respectively. The tribological properties of CrTiAlCN coatings sliding against SUS440C high carbon martensitic balls were performed using ball-on-disk tribo-tester. The results showed that CrTiAlCN coatings were mainly comprised of (111) and (200) crystal orientation. The maximum hardness of coatings was 29.4 ± 1.5 GPa as the carbon content was 22.5 at.%. With an increase in the carbon content of coatings, the friction coefficients and wear rates of CrTiAlCN/SUS440C tribo-pairs were significantly reduced, and the wear mechanism of coatings changed from adhesive wear to abrasive wear.
- OSTI ID:
- 22970893
- Journal Information:
- Journal of Materials Engineering and Performance, Vol. 28, Issue 3; Conference: ACE-X 2017: 11. International Conference on Advanced Computational Engineering and Experimenting, Vienna (Austria), 3-6 Jul 2017, DSL2017: 13. International Conference on Diffusion in Solids and Liquids, Vienna (Austria), 26-30 Jun 2017; Other Information: Copyright (c) 2019 ASM International; Country of input: International Atomic Energy Agency (IAEA); ISSN 1059-9495
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microstructure and tribological properties of Ti-contained amorphous carbon film deposited by DC magnetron sputtering
TOF-SIMS and XPS characterization of diamondlike carbon films after tests in inert and oxidizing environments.