Journal of Thermal Spray Technology

, Volume 27, Issue 4, pp 718–726 | Cite as

Tribological Properties of HVOF-Sprayed TiB2-NiCr Coatings with Agglomerated Feedstocks

  • Zichun Zhao
  • Hui Li
  • Tianlong Yang
  • Hongbin Zhu
Peer Reviewed


Boride materials have drawn great attention in surface engineering field, owing to their high hardness and good wear resistance. In our previous work, a plasma-sprayed TiB2-based cermet coating was deposited, but the coating toughness was significantly influenced by the formation of a brittle ternary phase (Ni20Ti3B6) derived from the reaction between TiB2 and metal binder. In order to suppress such a reaction occurred in the high-temperature spraying process, the high-velocity oxygen-fuel spraying technique was applied to prepare the TiB2-NiCr coating. Emphasis was paid on the microstructure, the mechanical properties, and the sliding wearing performance of the coating. The result showed that the HVOF-sprayed coating mainly consisted of hard ceramic particles including TiB2, CrB, and the binder phase. No evidence of Ni20Ti3B6 phase was found in the coating. The mechanical properties of HVOF-sprayed TiB2-NiCr coating were comparable to the conventional Cr3C2-NiCr coating. The frictional coefficient of the TiB2-NiCr coating was lower than the Cr3C2-NiCr coating when sliding against a bearing steel ball.


TiB2-NiCr coatings HVOF mechanical properties sliding performance 



The financial support from the natural science foundation of China (Nos. 51271007 and 51541107) is gratefully acknowledged.


  1. 1.
    H. Chen, G.Q. Gou, M.J. Tu, and Y. Liu, Structure and Wear Behaviour of Nanostructure and Ultrafine HVOF Spraying WC-17Co Coatings, Surf. Eng., 2009, 25, p 502-506CrossRefGoogle Scholar
  2. 2.
    N. Ma, L. Guo, Z.X. Cheng, H.T. Wu, F.X. Ye, and K.K. Zhang, Improvement on Mechanical Properties and Wear Resistance of HVOF Sprayed WC-12Co Coatings by Optimizing Feedstock Structure, Appl. Surf. Sci., 2014, 320, p 364-371CrossRefGoogle Scholar
  3. 3.
    S. Hong, Y.P. Wu, W.W. Gao, W.M. Guo, and J.R. Lin, Microstructural Characterisation and Microhardness Distribution of HVOF Sprayed WC-10Co-4Cr Coating, Surf. Eng., 2014, 30, p 53-58CrossRefGoogle Scholar
  4. 4.
    C.B. Huang, L.Z. Du, and W.G. Zhang, Microstructure, Mechanical and Tribological Characteristics of Plasma, Detonation Gun and HVOF Sprayed NiCr/Cr3C2-BaF2.CaF2 Coatings, Surf. Eng., 2011, 27, p 762-769CrossRefGoogle Scholar
  5. 5.
    S. Hazra, K. Sabiruddin, and P.P. Bandyopadhyay, Plasma and HVOF Sprayed WC-Co Coatings as Hard Chrome Replacement Solution, Surf. Eng., 2012, 28, p 37-43CrossRefGoogle Scholar
  6. 6.
    Y. Liu, G. Gou, and X. Wang, Effect of Rare Earth Elements on the Microstructure and Mechanical Properties of HVOF-Sprayed WC-Co Coatings, J. Therm. Spray Technol., 2014, 23, p 1225-1231CrossRefGoogle Scholar
  7. 7.
    M. Jones, A.J. Horlock, P.H. Shipway, D.G. McCartney, and J.V. Wood, A comparison of the Abrasive Wear Behaviour of HVOF Sprayed Titanium Carbide- and Titanium Boride-Based Cermet Coatings, Wear, 2001, 251, p 1009-1016CrossRefGoogle Scholar
  8. 8.
    C. Bartuil, T. Valente, and F. Cipri, Parametric Study of an HVOF Process for the Deposition of Nanostructure WC-Co Coatings, J. Therm. Spray Technol., 2005, 14, p 187-195CrossRefGoogle Scholar
  9. 9.
    Y.Y. Santana, J.G. Barbera-Sosa, J. Caro, E.S. Puchi-Cabrera, and M.H. Staia, Mechanical Properties and Microstructure of WC-10Co-4Cr and WC-12Co Thermal Spray Coatings Deposited by HVOF, Surf. Eng., 2008, 24, p 374-382CrossRefGoogle Scholar
  10. 10.
    R.G. Munro, Material Properties of Titanium Diborid, J. Res. Natl. Inst. Stand. Technol., 2000, 105, p 709-720CrossRefGoogle Scholar
  11. 11.
    B. Basu, G.B. Raju, and A.K. Suri, Processing and Properties of Monolithic TiB2 Based Materials, Int. Mater. Rev., 2006, 51, p 352-374CrossRefGoogle Scholar
  12. 12.
    J.F. McIlwain and L.A. Neumeier, Plasma-Sprayed Iron-Base Wear-Resistant Coatings Containing Titanium Diboride, RI8984, United States department of the interior, USA, 1985Google Scholar
  13. 13.
    J.A. Sue Jr., R.C. Tucker, A.J. Stavros, and Praxair S.T. Thchnology Inc., Method for producing a TiB 2-based coating and the coated article so produced, Bareford, Katherine A. European patent 0748879A1, 18 December 1996.Google Scholar
  14. 14.
    M. Berger and S. Hogmark, Evaluation of TiB2 Coatings in Sliding Contact Against Aluminium, Surf. Coat. Technol., 2002, 149, p 14-20CrossRefGoogle Scholar
  15. 15.
    P. Sharma and J.D. Majumdar, Surface Characterization and Mechanical Properties’ Evaluation of Boride-Dispersed Nickel-Based Coatings Deposited on Copper Through Thermal Spray Routes, J. Therm. Spray Technol., 2012, 21, p 800-809CrossRefGoogle Scholar
  16. 16.
    M. Berger and S. Hogmark, Tribological Properties of Selected PVD Coatings When Slid Against Ductile Materials, Wear, 2002, 252, p 557-565CrossRefGoogle Scholar
  17. 17.
    A.J. Horlock, D.G. McCartney, P.H. Shipway, and J.V. Wood, Thermally Sprayed Ni(Cr)–TiB2 Coatings Using Powder Produced by Self-Propagating High Temperature Synthesis: Microstructure and Abrasive Wear Behaviour, Mater. Sci. Eng., A, 2002, 336, p 88-98CrossRefGoogle Scholar
  18. 18.
    B. Lotfi, P.H. Shipway, D.G. McCartney, and H. Edris, Abrasive Wear Behaviour of Ni(Cr)–TiB2 Coatings Deposited by HVOF Spraying of SHS-Derived Cermet Powders, Wear, 2003, 254, p 340-349CrossRefGoogle Scholar
  19. 19.
    H.B. Zhu, H. Li, and Z.X. Li, Plasma Sprayed TiB2–Ni Cermet Coatings: Effect of Feedstock Characteristics on the Microstructure and Tribological Performance, Surf. Coat. Technol., 2013, 235, p 620-627CrossRefGoogle Scholar
  20. 20.
    H.B. Zhu, H. Li, H.X. Yang, and Z.X. Li, Microstructure and Sliding Wear Performance of Plasma-Sprayed TiB2-Ni Coating Deposited from Agglomerated and Sintered Powder, J. Therm. Spray Technol., 2013, 22, p 1310-1319CrossRefGoogle Scholar
  21. 21.
    H.B. Wang, H. Li, H.B. Zhu, F.J. Cheng, D.P. Wang, and Z.X. Li, A Comparative Study of Plasma Sprayed TiB2–NiCr and Cr3C2–NiCr Composite Coatings, Mater. Lett., 2015, 153, p 110-113CrossRefGoogle Scholar
  22. 22.
    A.G. Evans and T.R. Wilshaw, Quasi-static Solid Particle Damage in Brittle Solids—I. Observations Analysis and Implications, Acta Metall., 1976, 24, p 939-956CrossRefGoogle Scholar
  23. 23.
    D.B. Marshall, T. Noma, and A.G. Evans, Simple Method to Determining Elastic-Modulus-to-Hardness Ratios using Knoop Indentation Measurements, Commun. Am. Ceram. Soc., 1982, 65, p 175-176CrossRefGoogle Scholar
  24. 24.
    M.X. Xie, S.H. Zhang, M.X. Li, W.G. Wan, and G.H. Li, High temperature wear resistance of HVOF sprayed Cr3C2-25NiCr coating, Trans. Mater. Heat. Treat., 2012, 33, p 129-133Google Scholar
  25. 25.
    J.R. Ramberg, C.F. Wolfe, and W.S. Williams, Resistance of Titanium Diboride to High-Temperature Plastic Yielding, Commun. Am. Ceram. Soc., 1985, 68, p 78-79CrossRefGoogle Scholar
  26. 26.
    S. Dallaire, Thermal Spraying of Reactive Materials to Form Wear Resistant Composite Coatings, J. Therm. Spray Technol., 1992, 1, p 41-47CrossRefGoogle Scholar
  27. 27.
    N. Zhang, Microstructure and Tribological Performance of TiB2-NiCr Composite Coating Deposited by APS, Coatings, 2017, 7(12), p 238CrossRefGoogle Scholar

Copyright information

© ASM International 2018

Authors and Affiliations

  • Zichun Zhao
    • 1
  • Hui Li
    • 1
  • Tianlong Yang
    • 1
  • Hongbin Zhu
    • 2
  1. 1.College of Materials Science and EngineeringBeijing University of TechnologyBeijingChina
  2. 2.CRRC InstituteBeijingChina

Personalised recommendations