Abstract
Depending upon the mechanism of wear occurring within aircraft gas-turbine engines, different types of wear debris are expected to be produced in lubricating oils. A procedure was developed to identify the chemical nature of these wear species. The procedure involves filtration and solvent extraction techniques, followed by spectrometric analysis to separate and quantify the different chemical forms of the wear metal debris. The chemical form of some of the most critical wear species are identified as metallic, oxide, and metallo-organic species. The development and application of the procedure to identify and quantify the wear debris of Cu, Fe, and Mg in aircraft lubricating oils are discussed. Presented as an American Society of Lubrication Engineers paper at the ASLE/ASME Lubrication Conference in San Diego, California, October 22–24, 1984
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