Antiwear film formation of neutral and basic ZDDP: influence of the reaction temperature and of the concentration
作者： K. Varlot , M. Kasrai , J.M. Martin , B. Vacher , G.M. Bancroft
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摘要: Both synchrotron radiation-based techniques (XANES) and transmission electron microscopy (EDX, EELS) are used to draw a comparison of antiwear thermal films generated from neutral basic ZDDP salts. Antiwear were created in pin-on-flat wear machine the debris was collected. The analysis tribofilms did not show any substantial difference between ZDDPs. scar diameter P S chemical environment tribofilm very similar. revealed differences composition. Wear seems be mostly composed either unreacted or linkage isomer (LI-ZDDP), zinc polyphosphate; whereas as far is concerned exclusively polyphosphate (and sulphur species). More iron also detected with – possibly an indication content tribofilm. Differences structure could films. While reacted surface form polyphosphates at 150°C, same reaction products obtained 175°C. concentration oil thought main parameter explain film formation.
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K. Varlot, J.M. Martin, C. Grossiord, R. Vargiolu, B. Vacher, K. Inoue, A dual‐analysis approach in tribochemistry: application to ZDDP/calcium borate additive interactions Tribology Letters. ,vol. 6, pp. 181- 189 ,(1999) , 10.1023/A:1019167808656
Jean Michel Martin, Antiwear mechanisms of zinc dithiophosphate: a chemical hardness approach Tribology Letters. ,vol. 6, pp. 1- 8 ,(1999) , 10.1023/A:1019191019134
Zhanfeng Yin, Masoud Kasrai, Marina Fuller, G.Michael Bancroft, Kim Fyfe, Kim H. Tan, Application of soft X-ray absorption spectroscopy in chemical characterization of antiwear films generated by ZDDP Part I: the effects of physical parameters Wear. ,vol. 202, pp. 172- 191 ,(1997) , 10.1016/S0043-1648(96)07272-9
E. S. Yamaguchi, P. R. Ryason, E. Q. Labrador, T. P. Hansen, Comparison of the Relative Wear Performance of Neutral and Basic ZnDTP Salts Tribology Transactions. ,vol. 39, pp. 220- 224 ,(1996) , 10.1080/10402009608983524
P. A. Willermet, J. M. Pieprzak, D. P. Dailey, R. O. Carter, N. E. Lindsay, L. P. Haack, J. E. deVries, The Composition of Surface Layers Formed in a Lubricated Cam/Tappet Contact Journal of Tribology-transactions of The Asme. ,vol. 113, pp. 38- 47 ,(1991) , 10.1115/1.2920601
Masoud Kasrai, Zhanfeng Yin, G. Michael Bancroft, Kim H. Tan, X‐ray fluorescence measurements of x‐ray absorption near edge structure at the Si, P, and S L edges Journal of Vacuum Science and Technology. ,vol. 11, pp. 2694- 2699 ,(1993) , 10.1116/1.578628
Marina Fuller, Zhanfeng Yin, Masoud Kasrai, G.Michael Bancroft, Elaine S. Yamaguchi, P.Ray Ryason, Pierre A. Willermet, Kim H. Tan, Chemical characterization of tribochemical and thermal films generated from neutral and basic ZDDPs using X-ray absorption spectroscopy Tribology International. ,vol. 30, pp. 305- 315 ,(1997) , 10.1016/S0301-679X(96)00059-X
R.J. Bird, G.D. Galvin, The application of photoelectron spectroscopy to the study of e. p. films on lubricated surfaces Wear. ,vol. 37, pp. 143- 167 ,(1976) , 10.1016/0043-1648(76)90188-5
Marina L.Suominen Fuller, Masoud Kasrai, G.Michael Bancroft, Kim Fyfe, Kim H. Tan, Solution decomposition of zinc dialkyl dithiophosphate and its effect on antiwear and thermal film formation studied by X-ray absorption spectroscopy Tribology International. ,vol. 31, pp. 627- 644 ,(1998) , 10.1016/S0301-679X(98)00084-X
J. M. Georges, A. Tonck, S. Poletti, E. S. Yamaguchi, P. R. Ryason, Film Thickness and Mechanical Properties of Adsorbed Neutral and Basic Zinc Diisobutyl Dithiophosphates Tribology Transactions. ,vol. 41, pp. 543- 553 ,(1998) , 10.1080/10402009808983781