Tribochemical Formation of Sulphide Tribofilms from a Ti–C–S Coating Sliding Against Different Counter Surfaces
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- 作者：Harald Nyberg (1)
Jill Sundberg (2)
Erik S?rhammar (3)
Tomas Nyberg (3)
Ulf Jansson (2)
Staffan Jacobson (1) - 关键词：Triboactive ; Tribofilm ; WS2 ; Sulphide ; Low friction
- 刊名：Tribology Letters
- 出版年：2014
- 出版时间：December 2014
- 年：2014
- 卷：56
- 期：3
- 页码：563-572
- 全文大小：2,493 KB
- 参考文献：1. Nossa, A., Cavaleiro, A.: The influence of the addition of C and N on the wear behaviour of W–S–C/N coatings. Surf. Coat. Technol. 142-44, 984-91 (2001) CrossRef
2. Voevodin, A.A., O’Neill, J.P., Zabinski, J.S.: WC/DLC/WS2 nanocomposite coatings for aerospace tribology. Tribol. Lett. 6(2), 75-8 (1999) CrossRef
3. Podgornik, B., Hren, D., Vi?intin, J., Jacobson, S., Stavlid, N., Hogmark, S.: Combination of DLC coatings and EP additives for improved tribological behaviour of boundary lubricated surfaces. Wear 261(1), 32-0 (2006). doi:10.1016/j.wear.2005.09.007 CrossRef
4. De Barros, M.I., Bouchet, J., Raoult, I., Le Mogne, T., Martin, J.M., Kasrai, M., Yamada, Y.: Friction reduction by metal sulfides in boundary lubrication studied by XPS and XANES analyses. Wear 254(9), 863-70 (2003). doi:10.1016/S0043-1648(03)00237-0
5. Lara, J., Blunt, T., Kotvis, P., Riga, A., Tysoe, W.T.: Surface chemistry and extreme-pressure lubricant properties of dimethyl disulfide. J. Phys. Chem. B 102(10), 1703-709 (1998) CrossRef
6. Sawyer, W.G., Blanchet, T.A.: Lubrication of Mo, W, and their alloys with H2S gas admixtures to room temperature air. Wear 225-strong class="a-plus-plus">229, Part 1(0), 581-86 (1999). doi:10.1016/S0043-1648(99)00020-4
7. Sundberg, J., Nyberg, H., S?rhammar, E., Kádas, K., Wang, L., Eriksson, O., Nyberg, T., Jacobson, S., Jansson, U.: Tribochemically active Ti-/strong>C-/strong>S nanocomposite coatings. Mater. Res. Lett. 1(3), 148-55 (2013). doi:10.1080/21663831.2013.802262 CrossRef
8. Sanchez-Lopez, J.C., Martinez-Martinez, D., Lopez-Cartes, C., Fernandez, A.: Tribological behaviour of titanium carbide/amorphous carbon nanocomposite coatings: from macro to the micro-scale. Surf. Coat. Technol. 202(16), 4011-018 (2008) CrossRef
9. Pei, Y.T., Galvan, D., De Hosson, J.T.M., Cavaleiro, A.: Nanostructured TiC/a-C coatings for low friction and wear resistant applications. Surf. Coat. Technol. 198(1-), 44-0 (2005). doi:10.1016/j.surfcoat.2004.10.106 CrossRef
10. Lindquist, M., Wilhelmsson, O., Jansson, U., Wiklund, U.: Tribofilm formation and tribological properties of TiC and nanocomposite TiAlC coatings. Wear 266(3-), 379-87 (2009). doi:10.1016/j.wear.2008.04.046 CrossRef
11. Oliver, W.C., Pharr, G.M.: An improved technique for determining hardness and elastic-modulus using load and displacement sensing indentation experiments. J. Mater. Res. 7(6), 1564-583 (1992). doi:10.1557/jmr.1992.1564 CrossRef
12. Lewin, E., Wilhelmsson, O., Jansson, U.: Nanocomposite nc-TiC/a-C thin films for electrical contact applications. J. Appl. Phys. 100(5) (2006). doi:10.1063/1.2336302
13. Grosseau-Poussard, J.L., Moine, P., Brendle, M.: Shear strength measurements of parallel MoSx thin films. Thin Solid Films 307(1-), 163-68 (1997). doi:10.1016/S0040-6090(97)00205-8
文摘
Tribochemically active Ti-/strong>C-/strong>S coatings are nanocomposite coatings containing a S-doped titanium carbide, from which S can be released in a tribological contact. This work studies tribochemical reactions between a Ti-/strong>C-/strong>S coating and various counter surface materials, and their effect on the tribological performance. Tribological tests were performed in a ball-on-disc set-up, using balls of five different materials as sliding partners for the coating: 100Cr6 steel, pure W, WC, 316-L steel and Al2O3. For W balls, a WS2 tribofilm was formed, leading to low friction (down to μ?=?0.06). Furthermore, increasing normal load on the W balls was found to lead to a strong decrease in μ and earlier formation of the low-friction WS2 tribofilm. Similar WS2 and MoS2 tribofilms were, however, not formed from WC- and Mo-containing 316-L balls. The performance when using WC and Al2O3 balls was significantly worse than for the two steel balls. It is suggested that this is due to sulphide formation from Fe, analogous to formation of anti-seizure tribofilms from S-containing extreme pressure additives and steel surfaces. The tribochemical activity of Ti-/strong>C-/strong>S coatings, with the possibility of S release, is thus beneficial not only for pure W counter surfaces, but also for Fe-based sliding partners.