Abstract
The wear properties of δ-(Ti,Mo)N films deposited at low and high nitrogen gas flow rates (fN2) were investigated. The film at fN2=2.0 sccm showed better adhesive wear resistance than that at fN2=0.3 sccm. Such improvement in the film at fN2=2.0 sccm was due to the formation of Mo oxide debris by wear oxidation. It was found that Mo oxidation more easily occurred in the film at fN2=2.0 sccm than in the film at fN2=0.3 sccm. Thermodynamic consideration indicated that since the activity of Ti in δ-(Ti,Mo)N decreases with increasing N content, Mo oxidation is promoted in the film at fN2=2.0 sccm, which leads to better wear properties.
Original language | English |
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Pages (from-to) | 32-39 |
Number of pages | 8 |
Journal | Tribology International |
Volume | 87 |
DOIs | |
Publication status | Published - 2015 Jul |
Keywords
- Coating
- Debris
- Self-lubricating
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films