The Effect of Lubricant Chemistry on Wear and Scuffing of Coated Surfaces

K. Cheenkachorn, O. O. Ajayi, J. M. Perez, G. R. Fenske

Research output: Contribution to journalConference articlepeer-review


This study focuses on the effect of lubricant chemistry on wear and scuffing of coated surfaces. The coated surfaces in the present work include TiAlN, TiN, and CrN in the presence of different lubricants including high-oleic sunflower oil, high-oleic corn oil, fully-formulated sunflower oil, fully-formulated corn oil, and a synthetic base oil. The tests are conducted using the four-ball wear test to study the wear and scuffing properties. The scanning electron microscope (SEM) and optical microscope with MicroXAM R are used to study the wear mechanism. The study shows that coatings do not affect the friction coefficient at severe test conditions. However, some coatings, TiN and CrN, improve the wear properties even in base fluids without additives. All coatings improve the scuffing properties and increase the contact severity index. The vegetable-based lubricants perform comparably to commercially available synthetic lubricants.

Original languageEnglish (US)
Pages (from-to)409-413
Number of pages5
JournalAmerican Society of Mechanical Engineers, Internal Combustion Engine Division (Publication) ICE
StatePublished - 2003
EventProceedings of the 2003 Spring Technical Conference of the ASME Internal Combustion Engine Division - Salzburg, Austria
Duration: May 11 2003May 14 2003

All Science Journal Classification (ASJC) codes

  • General Engineering


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