Development of low friction wear-resistant coatings
- Resource Type
- Authors
- P Cosemans; Xinyao Zhu; J. P. Celis; M. Van Stappen
- Source
- Surface and Coatings Technology. :416-420
- Subject
- Materials science
Metallurgy
chemistry.chemical_element
Corundum
Fretting
Surfaces and Interfaces
General Chemistry
Low friction
Sputter deposition
engineering.material
Condensed Matter Physics
Surfaces, Coatings and Films
Composite coating
chemistry
Coating
Materials Chemistry
engineering
Wear resistant
Tin
- Language
- ISSN
- 0257-8972
Research has been performed to design a multifunctional coating combining TiN with MoS x resulting in a wear-resistant coating with a low coefficient of friction (COF). The coatings are deposited by a combined physical vapour deposition technique of E-gun evaporation and magnetron sputtering in a BAI640 equipment. Pin-on-disk (POD) measurements at approximately 50% RH against a corundum (Al 2 O 3 ) ball show a significant decrease in COF compared with the results for a standard TiN coating. The incorporation of a soft phase in the TiN matrix did not lead to a decrease in hardness. The combination of a low COF and high hardness results in a decreased wear rate approximately 20 times lower in POD and 500 times lower in fretting compared to the standard TiN coating. The performance of the composite coating is tested in a drilling application and shows an increased lifetime.