This work presents and discusses the extreme-pressure properties of binary oil mixtures made with a low viscosity polyalphaolefin (PAO 6) and two esters (TMP-05 and sunflower oil, SO). Tests were made in a four-ball machine tester using the ASTM D 2783-88. The ball test material was AISI 52100 steel, 12.7 mm. in diameter, with a hardness of about 65 HRC. The wear scar diameter (WSD) was measured with an optical microscope. The results showed that: although PAO 6, TMP-05 and SO have different physical properties, they perform similar behavior under high loads; TMP-05 and SO have better results in wear tests than PAO 6, but their extreme-pressure properties are similar; and TMP-05 and SO act as wear reducers when they are added to PAO 6, but they do not improve its behavior under high loads.
Wear Behaviour of Binary Oil Mixtures Under Extreme-Pressure Conditions
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Fernandez Rico, JE, Hernandez Battez, A, & Chou Rodriguez, R. "Wear Behaviour of Binary Oil Mixtures Under Extreme-Pressure Conditions." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 1. Washington, D.C., USA. September 12–16, 2005. pp. 441-442. ASME. https://doi.org/10.1115/WTC2005-63164
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