Abstract
The aim of the present study was to propose a new electrochemicalmodel of anti-wear behaviour of dibutyldithiophosphate complexes[(DTP)zMA z+](where MA z+=Au+,Ag+ or Zn2+) in a non-aqueous model solventon the basis of electrochemical experiments compared withclassical four-ball machine tests on standard 100Cr6 steel. Theelectrochemical behaviour of [(DTP)zMA z+] wasobserved on bronze, copper and 100Cr6 steel electrodes innon-aqueous acetonitrile solutions containing 0.05 M NaClO4 as a supporting electrolyte. Potential peaks(1Ep,c) of the underpotentialdeposition (UPD) of MA metals were observed, and thesequence of 1Ep,c: Au>Ag>Zn valueswas identified. A similar sequence of effectiveness of the[(DTP)zMA z+]anti-wear agents was obtained in the four-ball machine tests.
Similar content being viewed by others
References
F.P. Bowden and D. Tabor, in: The Friction and Lubrication of Solids (Clarendon Press, Oxford, 1964).
J. O’M. Bockris and S.D. Gileadi, Electrochim Acta 14 (1969) 1259.
G.H. Kelsall, Y. Zhu and H.A. Spikes, J. Chem. Soc. Faraday Trans. 89 (1993) 267.
N.P. Brandon, N. Bonanos, P.O. Fogarty, M.N. Mahmood, A.J. Moore and P.J.K. Wood, J. Appl. Electrochem. 23 (1993) 456.
S.C. Tung and S.S. Wang, ASLE Trans. 34 (1991) 23.
S.S. Wang, S.P. Maheswari and S.C. Tung, ASLE Trans. 30 (1987) 394.
S.S. Wang, S.P. Maheswari and S.C. Tung, ASLE Trans. 31 (1988) 381.
I.L. Goldblatt, in: The Importance of Electron Transfer Processes to the Wear Processes, Proc. 34th Int. Meeting Soc. de Chimie, Tribology Series,Vol. 7 (1981) p. 521.
S.N. Postnikov, Electrophysical and Electrochemical Phenomena in Friction, Cutting, and Lubrication (Van Nostrand Reinhold, NewYork,1978).
J. O’M. Bockris, Surface Electrochemistry. A Molecular Level Approach (Plenum Press, New York, 1993) ch. 8.12.11, pp. 831 833, and references therein.
J.W. Fu, ASLE Trans. 31 (1988) 497.
A.M. Homola et al., Trans. ASMEJ. Tribol. 112 (1990) 567.
S.C. Tung and S.S. Wang, Tribol. Trans. 34 (1991) 479.
C. Kajdas and I. Fodor, Tribol. Trans. 31 (1988) 476.
D. Ozimina, in: Proc. 6th Int. Congr. on Tribology, Budapest 1993, Vol. 2, p. 41.
H. Czichos, Tribology (Elsevier, Amsterdam, 1978) p. 10; W. Morales, ASLE Trans. 29 (1986) 67.
H. Scholl, S. Płaza and D. Ozimina, Mat. of 35th IUPAC Congress, 1419August 1995, Istanbul, Abstr. I, Phys P054.
D. Ozimina, in: Proc. 6th Nordic Symp. on Tribology NORTRIB '94, 12-15 June 1994,Uppsala,Vol. 2, pp. 381387.
H.M. Koepp, H. Wendt and H. Strehlow, Zh. Fiz. Khim. 64 (1960) 483.
H. Strehlow, in: The Chemistry of Non-Aqueous Solvents, Vol. 1, ed. L. Lagowski (Academic Press, NewYork, 1967) p. 129.
Y. Marcus, PureAppl. Chem. 55 (1983) 977.
H. Scholl and K. Sochaj, Electrochim. Acta 34 (1989) 915.
D. Bauer and M. Bréant, Electroanal. Chem., Vol. 8, ed. A.I. Bard (Dekker, NewYork, 1975) pp. 248-281.
H. Scholl, Solvation and Electrode Processes in Non-Aqueous Solvents (University Press Office, Ł ódź, 1992) p. 133, in Polish.
H. Scholl and K. Sochaj, Electrochim. Acta 36 (1991) 689.
M.I. Montenegro, M.A. Queiros and J.L. Daschbach, eds., Microelectrodes: Theory and Application, NATO ASI Ser. E (1987) p. 197.
J. Heinze, Angew. Chem. Int. Ed. Engl. 32 (1993) 1268, and references therein.
M. Fleischman, S. Pons and D.R. Rolison, in: Ultramicroelectrodes, ed. P.P. Schmidt (Datatech System, Morganton, 1987).
D.M. Kolb, in: Advances in Electrochemistry and Electrochemical Engineering, Vol. 11, ed. C.W. Tobias (Wiley, NewYork, 1978).
J. O'M. Bockris and S.U.M. Khan, Surface Electrochemistry. A Molecular Level Approach (Plenum Press, New York, 1993) ch. 3.24.18, pp. 377380, and references therein.
S. Swateiharajan and S. Bruckstein, Electrochim. Acta 28 (1983) 865.
G. Kokkinidis, J. Electroanal. Chem. 210 (1986) 217.
M. Hepel, K. Kanige and S. Bruckstein, J. Electroanal. Chem. 266 (1986) 697.
C.P.M. Bongenaar, A.G. Remijnse, M. Sluyters-Rehbach and J.H. Sluyters, J. Electroanal. Chem. 111 (1980) 150.
J. Strujis, M. Sluyters-Rehbach and J.H. Sluyters, J. Electroanal. Chem. 171 (1984) 177.
M. Hepel and S. Bruckstein, Electrochim. Acta 34 (1989) 1499.
C.P. Wilde and M. Zhang, J. Electroanal. Chem. 327 (1992) 307.
T. B. aszczyk, W. Olejniczak and P. Kobierski, Pomiary, Automatyka,Kontrola 40 (1995) 342.
Rights and permissions
About this article
Cite this article
Ozimina, D., Scholl, H. & Plaza, S. Electrochemical simulation of friction interactionson the basis of anti-wear behaviour of metallo-dibutyldithiophosphate complexes[(DTP)zMA z+] innon-aqueous media. Tribology Letters 3, 147–155 (1997). https://doi.org/10.1023/A:1019124920583
Issue Date:
DOI: https://doi.org/10.1023/A:1019124920583