Abstract
A new process has been developed to incorporate graphite particles into a stainless steel coating during its formation. Four means have been tested to inject the graphite particles outside the plasma jet and its plume: graphite suspension, a graphite rod rubbed on the rotating sample, powder injection close to the substrate with an injector, or a specially designed guide. The last process has been shown to be the most versatile and the most easily controllable. It allows the incorporation of between 2 and 12 vol.% of graphite particles (2–15 µm) within the plasma sprayed stainless steel coatings. A volume fraction of 2% seems to give the best results with a slight decrease (6%) of the coating hardness. This volume fraction also gave the best results in dry friction on the pin-on-disk apparatus. Depending on the sliding velocity (0.1–0.5 m/s) and loads (3.7–28 N), the dry friction coefficient against a 100C6 pin is reduced by between 1.5 and 4 compared with that obtained with plasma sprayed stainless steel.
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A. Borisova, Y. Borisov, A Tunik, L, Adeeva, E. Lugscheider, and C. Herbst, Tagungsband Conference Proceedings, E. Lugscheider and P.A. Kammer, Ed., ASM International, 1999, p 174–181
H.D. Steffens, J. Wilden, D. Hanmann, M. Granilick, M. Viwel, M. Höhle, and M.C. Nestler, Thermal Spraying—Current States and Future Trends, A. Ohmori, Ed., High Temp. Soc. Japan, Vol. 2, 1995, p 657–62
B.R. Marple and J. Voyer, Thermal Spray: Surface Engineering via Applied Research, C.C. Berndt, Ed., ASM International, 2000, p 909–918
S. Hartmann, F. Bültmann, and F. Janke, Tagungsband Conference Proceedings, E. Lugscheider and P.A. Kammer, Ed., ASM International, 1999, p 169–173
S.D. Siegmann, O.C. Brandt, and N.M. Margadant, Thermal Spray: Surface Engineering via Applied Research, C.C. Berndt, Ed., ASM International, 2000, p 1135–1140
J.M. Guilemany, J. Navarro, C. Lorenzana, S. Vizcaino, and J.M. Miguel, Thermal Spray 2001: New Surfaces for a New Millennium, C.C. Berndt, K.A. Khor, and E.F. Lugscheider, Ed., ASM International, 2001, p 1115–1118
A. Harir, “Contribution to the Feasibility of Plasma Spraying Steel-Solid Lubricant Composite Coatings and Their Tribological Behavior,” Thèse de l’Université de Limoges, 2002 (in French)
M. Mellali, “Influence of the Surface Roughness and Substrate Temperature on the Adhesion and Residual Stress Distribution of Plasma Sprayed Alumina Coatings,” Thèse de l’Université de Limoges, 1994 (in French)
H. Ageorges and P. Fauchais, Thin Solid Films, Vol 370, 2000, p 213–222
A.A. Syed, A. Denoirjean, P. Denoirjean, J.C. Labbe, P. Fauchais, In-Flight Oxidation of Stainless Steel Particles in Plasma Spraying, Invited paper accepted in Journal of Thermal Spray Technology, 2003
P. Reynaud and Y. Berthier: “Space Tribology, Friction Under Extreme Conditions,” Senlis, F, November 21, 1992, CETM Senlis, p 19
Y. Berthier, “Mechanisms and Tribiology,” State Thesis, INSA Lyon, F, 1988 (in French)
M. Godet, Wear, 100, 1984, p 437–52
P. Fournier, “Dry Friction of Monolithic Composite and Refractory Materials: Analysis Through the Concept of Body,” l’Université de Limoges, 1997 (in French)
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Harir, A., Ageorges, H., Grimaud, A. et al. Low friction stainless steel coatings graphite doped elaborated by air plasma sprayed. J. of Materi Eng and Perform 13, 557–563 (2004). https://doi.org/10.1361/10599490419955
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DOI: https://doi.org/10.1361/10599490419955