We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Physicomechanical Properties of Coatings Based on Max Ti<sub>2</sub>AlC and (Ti, Nb)<sub>2</sub>AlC Phases at 20°C and 500°C.
- Authors
Podhurska, V. Ya.; Kuprin, O. S.; Chepil, R. V.; Ostash, O. P.; Prikhna, T. O.; Sverdun, V. B.; Bortnytska, M. O.
- Abstract
Physicomechanical characteristics of 15Kh16k5N2MVFAB-Sh steel (0.15C–16Cr–5Co–2Ni–0.7V–0.6Mo–0.3Nb–0.4N): wear resistance at 20°C and 500°C and resistance to fretting fatigue at 20°C without and with coatings obtained by the method of vacuum-arc deposition using targets based on the MAX phases of Ti 2 AlC and (Ti 1 - x Nb x) 2 AlC , where x = 0.1 and 0.2, are investigated. At 20°C the friction coefficient and the wear specific rate of all coatings are greater than that of the studied steel in contact with a ShKh15 steel (1.0C–1.5Cr–0.3Ni–0.3Mn–0.3Si–0.25Cu) ball under a load of 2 N. Unambiguous relationship between microhardness and tribological characteristics of materials has not been recorded. The resistance to fretting fatigue of the samples with Ti 2 AlC -based coating in contact with the Ni-alloy (17Cr–12W–11Fe–6Co–3Ti–1.5Nb–1.6Al) in high-cycle region (N > 10 5 cycles) is significantly higher than that of uncoated samples. The tribological characteristics of all materials decrease at 500°C but the least for samples with Ti 2 AlC based coating. We have not found positive influence of niobium doping on the wear and fretting fatigue resistance of these coatings.
- Subjects
FATIGUE limit; WEAR resistance; MECHANICAL wear; SURFACE coatings; FRETTING corrosion; NIOBIUM
- Publication
Materials Science, 2023, Vol 59, Issue 1, p10
- ISSN
1068-820X
- Publication type
Article
- DOI
10.1007/s11003-023-00737-8