TY - JOUR
T1 - Fatigue life of TiN and CrN coatings in rolling contact
AU - Vera, E. E.
AU - Vite, M.
AU - Gallardo, E. A.
AU - Laguna-Camacho, J. R.
PY - 2013/4
Y1 - 2013/4
N2 - In this study, experimental tests to assess rolling contact fatigue in uncoated and coated steel substrates with TiN and CrN coatings are presented. A thrust bearing tester was used. The tests were carried out in lubricated conditions at 1560 r/min, using a contact pressure of 2.09 GPa. The surface damage was analyzed by optical microscopy, scanning electron microscopy, and energy dispersive spectroscopy. The substrates coated with CrN showed a fatigue life above 100 million cycles. On the other hand, with TiN, the time for crack nucleation was much shorter, approximately 60 × 104 cycles.
AB - In this study, experimental tests to assess rolling contact fatigue in uncoated and coated steel substrates with TiN and CrN coatings are presented. A thrust bearing tester was used. The tests were carried out in lubricated conditions at 1560 r/min, using a contact pressure of 2.09 GPa. The surface damage was analyzed by optical microscopy, scanning electron microscopy, and energy dispersive spectroscopy. The substrates coated with CrN showed a fatigue life above 100 million cycles. On the other hand, with TiN, the time for crack nucleation was much shorter, approximately 60 × 104 cycles.
KW - Hard coating
KW - Rolling contact fatigue
KW - Thrust bearing tester
UR - http://www.scopus.com/inward/record.url?scp=84877862135&partnerID=8YFLogxK
U2 - 10.1177/1350650112463844
DO - 10.1177/1350650112463844
M3 - Artículo
SN - 1350-6501
VL - 227
SP - 339
EP - 348
JO - Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
JF - Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
IS - 4
ER -