Advantages of using optical profilometry in the ASTM D4172 standard
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Authors: Hernández Battez, A., Torres Pérez, A., García-Atanje, G., Viesca, J.L., González, R. and Hadfield, M.
Journal: Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2010
The advantages of using optical profillometry in the ASTM D4172 standard are presented. Two formulated hydraulic oils, i.e., Mobil DTE 13M and ESSO NUTO H46, were used. The differences of wear volume among tests for both hydraulic oils with similar testing times were bigger than the differences in wear scar diameter (WSD). Similar WSD can correspond with different wear volumes. Therefore, this fact should be considered in the comparison process of antiwear properties among lubricants. Measurement of the wear volume is a more effective method than the WSD measurements, mainly when the wear surface has displaced or transferred material and/or irregular shape. This is an abstract of a paper presented at the Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition (Las Vegas, NV 5/16-20/2010).