期刊
TRIBOLOGY LETTERS
卷 26, 期 2, 页码 161-171出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11249-006-9189-2
关键词
zinc dialkyldithiophosphate; ZDDP; film; boundary lubrication; thickness; roughness; antiwear
资金
- Engineering and Physical Sciences Research Council [EP/C520629/1] Funding Source: researchfish
The two experimental techniques, spacer layer interferometry imaging (SLIM) and atomic force microscopy (AFM), have been used to measure the thickness and roughness of zinc dialkyl dithiophosphate (ZDDP) reaction films formed in a rolling-sliding minitraction machine (MTM) tribometer. The AFM method has been complemented by a novel ZDDP film removal method based on ethylenediaminetetraacetic acid (EDTA) solution. It has been found that the two approaches measure very similar ZDDP film thickness values, lending credence to both methods. However the AFM approach measures much rougher ZDDP reaction films than MTM-SLIM and it is believed that SLIM underestimates the film roughness. Based on this, the use of MTM-SLIM is recommended for monitoring the evolution of antiwear film thickness during rubbing, while AFM should be employed for studying the morphology of antiwear films.
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