Enhancement of tribological behavior of rolling bearings by applying a multilayer ZrN/ZrCN coating

Clavería, I. (Universidad de Zaragoza) ; Lostalé, A. ; Fernández, Á. (Universidad de Zaragoza) ; Castell, P. ; Elduque, D. (Universidad de Zaragoza) ; Mendoza, G. ; Zubizarreta, C.

Resumen: This paper focuses on the tribological behaviour of ZrN/ZrCN coating on bearing steel substrates DIN 17230, 100Cr6/1.3505. Coatings are applied at room temperature processes by means of Cathodic Arc Evaporation (CAE), a kind of Physical Vapor Deposition (PVD) technique. In order to achieve a satisfactory compromise between coating-substrate adhesion and the surface roughness requirement of the bearing rings, a polish post-processing is proposed. Different polish post-processing times and conditions are applied. The coated and polished bearing rings are tested under real friction torque test protocols. These tests show that the application of the coating does not entail a significant improvement in friction performance of the bearing. However, fatigue tests in real test bench are pending to evaluate the possible improvement in bearing life time.

Idioma: Inglés

DOI: 10.3390/coatings9070434

Año: 2019

Publicado en: COATINGS 9, 7 (2019), 434 [18 pp]
ISSN: 2079-6412

Factor impacto JCR: 2.436 (2019)

Categ. JCR: MATERIALS SCIENCE, COATINGS & FILMS rank: 10 / 21 = 0.476 (2019) - Q2 - T2

Factor impacto SCIMAGO: 0.463 - Materials Chemistry (Q2) - Surfaces, Coatings and Films (Q2) - Surfaces and Interfaces (Q3)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/T08-17R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/RTC-2016-5799-4

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Mecánica (Dpto. Ingeniería Mecánica)