Tribological characterization of AlCrN, AlTiN, AlTiON and AlCrON coatings on CoCrMo alloy

José Luis Tijerina-Gonzalez, M.A.L. Hernandez-Rodriguez, D.E. Lozano, G.M. Martinez-Cazares, Y. Bedolla-Gil

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


CoCrMo alloys are commonly used in artificial joints. However, tribocorrosion phenomena have led to the search for improvements to diminish wear debris and ion release. Engineering of surfaces is an alternative to achieve this purpose. In the present study the tribological effect of AlCrN, AlTiN, AlTiON, and AlCrON coatings deposited on cast CoCr alloy was investigated. The coatings were deposited by the physical vapor deposition (PVD) sputtering technique. Adhesion of the coatings was determined with a scratch tester by identifying critical loads at different failure levels. A ball-on-disc tribometer was used to assess the wear behavior using Ringer’s solution as the lubricant. Samples were characterized with metallographic techniques, scanning electronic microscopy (SEM), profilometry to measure roughness (R a) and wear, and microhardness tests. In the AlTiON and AlCrON coatings the porosity was diminished and the hardness increased due to the presence of oxygen. However, the tribological performance was poor. The AlTiN coating exhibited high adherence and wear resistance even though it also presented the lowest hardness.

Original languageEnglish
Pages (from-to)119-125
Number of pages7
JournalTribology Transactions
Issue number1
Publication statusPublished - 2021

Bibliographical note

Publisher Copyright:
© 2020 Society of Tribologists and Lubrication Engineers.

Copyright 2021 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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