Effect of orienting coatings on the apparent activation energy of boundary film destruction

Research paper by I. A. Buyanovskii, Yu. N. Drozdov, Z. V. Ignatieva, T. M. Savinova, V. A. Levchenko, V. N. Matveenko

Indexed on: 01 Feb '07Published on: 01 Feb '07Published in: Journal of Friction and Wear


The apparent activation energy of seizure in boundary lubrication was calculated using the temperature-kinetic approach to the description of boundary lubrication. The tests were carried out with the ball-on-disc machine. The ball was made of chromium ball-bearing steel and the disc was made of stainless steel. Discs made of stainless steel coated with aluminum nitride and high-ordered polycrystalline carbon were also used. The pair was lubricated with model lubricants. It was shown that the apparent activation energy of seizure in friction against steel coated with carbon is by almost an order of magnitude higher than in friction against uncoated steel.