Tribological behaviour of polyalphaolefins: wear and rolling contact fatigue tests.

Fernandez Rico, J.E., Garcia Cuervo, D. and Hernandez Battez, A., 2001. Tribological behaviour of polyalphaolefins: wear and rolling contact fatigue tests. In: 2nd World Tribology Congress, 3--7 September 2001, Vienna, Austria.

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WTC2001Paper.pdf - Accepted Version



Polyalphaolefin fluids are gaining rapid acceptance as high-performance lubricants and functional fluids because they have certain inherent, and highly desirable, characteristics relative to mineral oils. One of these characteristics is their low toxicity. It combined with excellent viscometrics and lubricity, have made low-viscosity PAO fluids an important component in lubricant formulations. Typical data found in product specifications for lubricants are the kinematic viscosity and the viscosity index. These values do not give enough information to choose the optimum lubricant for a lubricated contact. In mechanical systems take place rolling, sliding and rolling/sliding contacts, therefore lubricants have to work the best possible in these operation conditions. In this study are experimentally determined the L50, L10 and Weibull´s slope () of polyalphaolefins with two different viscosities. This test was made on a four-ball machine (Stanhope Seta). Wear test also was made on a four-ball tester (Roxana) in order to measure the wear scar diameter (WSD), and the flash temperature parameter (FTP). Lubricants were identified through infrared spectroscopy, and ball´s pittings were observed with SEM.

Item Type:Conference or Workshop Item (Paper)
Group:Faculty of Science and Technology
ID Code:21066
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:24 Feb 2014 12:38
Last Modified:10 Sep 2014 14:57


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