Effect of Preparation Conditions on the Performance of Ni-TiB₂-Gd₂O₃ Composite Coatings

Abstract:

TiB₂ and Gd₂O₃ were used as codeposited particles for the first time in preparing Ni-TiB₂-Gd₂O₃ composite coatings to improve its performance. Ni-TiB₂-Gd₂O₃ composite coatings were prepared by electrodeposition method from a nickel cetyltrimethylammonium bromide and hexadecylpyridinium bromide solution containing TiB₂ and Gd₂O₃ particles. The content of codeposited TiB₂ and Gd₂O₃ in the composite coatings was controlled by the addition of different TiB₂ and Gd₂O₃ particles concentrations in the solution, respectively. The effects of TiB₂ and Gd₂O₃ content on microhardness, wear weight loss, and friction coefficient of composite coatings were investigated, respectively. Ni-TiB₂-Gd₂O₃ composite coatings shows higher microhardness and lower wear weight loss, friction coefficient than those of the pure Ni coating and Ni-TiB₂ composite coatings. The wear weight loss of Ni-TiB₂-Gd₂O₃ composite coatings is lower 9.13 and 1.59 times than that of the pure Ni coating and Ni-TiB₂ composite coatings, respectively. The friction coefficients of pure Ni coating, Ni-TiB₂ and Ni-TiB₂-Gd₂O₃ composite coatings are 0.723, 0.815 and 0.43, respectively. Ni-TiB₂-Gd₂O₃ composite coatings shows the least friction coefficient among the three coatings. Gd₂O₃ particles in composite coatings serves as solid lubricant between contact surfaces, decreases the friction coefficient, abates the wear and increases the corrosion resistance of the composite coatings. The loading-bearing capacity and the wear-reducing effect of the Gd₂O₃ particles in the composite coatings are closely related to the content of Gd₂O₃ particles in the composite coatings.

• Periodical: Advanced Materials Research (Volume 815)
• Pages: 574-578
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.815.574
• Online since: October 2013
• Authors: Xiao Zhen Liu, Yu Zhen Li, Ling Ling Song, Xiao Dong Yu, Wei Ting Lu
• Keywords: Composite Coating, Electrodeposition, Gd₂O₃, Nickel, TiB₂

References

[1] C. Li, L.P. Wang, Z.X. Zeng, J.Y. Zhang, Materials Science and Engineering A. 434(2006)319.

[2] T. Denny, B. Andreas, Surface & Coatings Technology. 201(2007)7215.

[3] K.S. Nabeen, T. Takashi, S. Tetsuo, Diamond & Related Materials. 15(2006)1570.

[4] K.S. Nabeen, M. Masabumi, S. Tetsuo, Wear. 254 (2003)555.

[5] A. Abdel, M.I. Khaled, H.Z. Abdel, Wear. 260(2006)1070.

[6] A. Ramalhoa, J.C. Miranda, Wear. 259 (2005) 828.

[7] B. Andreas, T. Denny, Surface & Coatings Technology. 201(2007)7092.

[8] G.K. Burkat, T. Fujimura, V.Y. Dolmatov, E.A. Orlova, M.V. Veretennikova, Diamond & Related Materials. 14 (2005)1761.

DOI: 10.1016/j.diamond.2005.08.004

[9] B. Felicia, B. Lidia, P.C. Jean, Surface & Coatings Technology. 201(2007)6940.

[10] S.T. Aruna, C.N. Bindu, V. Ezhil Selvi, V.K. William Grips, K.S. Rajam, Surface & Coatings Technology. 200(2006)6871-6880.

DOI: 10.1016/j.surfcoat.2005.10.035

[11] L. St-Georges, Wear. 263 (2007)562.

[12] M.E. Bahrololoom, R. Sani, Surface and Coatings Technology. 192(2005)154.

[13] M.R. Vaezi., S.K. Sadrnezhaad., L. Nikzad, Colloids and Surfaces A: Physicochem. Eng. Aspects. 315(2008)176.

[14] Q.X. Yan, S. Shinya, Wear. 262(2007)765.

[15] M.H. Ebrahimian, K.D. Azari, S.M. Moonir, Wear. 260(2006)123.

[16] X.Z. Liu, J. Chen, ZL200810042132. 5, (2010).

[17] X.Z. Liu, X. Li, A.B. Yu, W.J. Huang, Journal of Rare Earths. 27 (2009)480.