Skip to main content
SpringerLink
Log in

Effect of Sealing Treatment on Corrosion Resistance of Plasma-Sprayed NiCrAl/Cr2O3-8 wt.%TiO2 Coating

  • Peer Reviewed
  • Published:
Journal of Thermal Spray Technology Aims and scope Submit manuscript

Abstract

Plasma-sprayed ceramic coatings inherently contain pores and micro-cracks which is deleterious when performed in aggressive environment. Various methods were applied to the as-sprayed coatings in order to improve the corrosion resistance. In the investigation of this study, plasma-sprayed NiCrAl/Cr2O3-8 wt.%TiO2 coatings were sealed by epoxy resin and silicone resin, respectively. Coatings were characterized by scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), optical microscopy (OM) and x-ray diffraction (XRD). The possible corrosion mechanism was discussed. The results of salt spray test and electrochemical measurements indicated that after the sealing treatment, the porosity of coatings decreased obviously and a compact layer was formed to protect the coating from corrosion. The silicone resin proved to be more effective than epoxy resin in enhancing the corrosion resistance of the coatings used in this research.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

  1. M. Harju, M. Järn, P. Dahlsten, J.-P. Nikkanen, J.B. Rosenholm, and T. Mäntylä, Influence of Long-Term Aqueous Exposure on Surface Properties of Plasma-Sprayed Oxides Cr2O3 and Cr2O3-25 wt.%TiO2, J. Colloid Interface Sci., 2008, 326, p 403-410

    Article  CAS  Google Scholar 

  2. H.-J. Kim, C.-H. Lee, and Y.-G. Kweon, The Effect of Sealing on the Mechanical Properties of the Plasma-Sprayed Alumina-Titania Coating, Surf. Coat. Technol., 2001, 139, p 75-80

    Article  CAS  Google Scholar 

  3. S. Liscano, L. Gil, and M.H. Staia, Effect of Sealing Treatment on the Corrosion Resistance of Thermal-Sprayed Ceramic Coatings, Surf. Coat. Technol., 2004, 188-189, p 135-139

    Article  CAS  Google Scholar 

  4. P. Ctibor, K. Neufuss, F. Zahalka, and B. Kolman, Plasma-Sprayed Ceramic Coatings without and with Epoxy Resin Sealing Treatment and Their Wear Resistance, Wear, 2007, 262, p 1274-1280

    Article  CAS  Google Scholar 

  5. C.L. Li, H.X. Zhao, T. Takahashi, and M. Matsumura, Improvement of Corrosion Resistance of Materials Coated with a Cr2O3/NiCr Delayer Using a Sealing Treatment, Mater. Sci. Eng., 2001, A308, p 268-276

    CAS  Google Scholar 

  6. S. Ahmaniemi, P. Vuoristo, and T. Mantyla, Improved Sealing Treatments for Thick Thermal Barrier Coatings, Surf. Coat. Technol., 2002, 151-152, p 412-417

    Article  CAS  Google Scholar 

  7. G. Xie, X. Lin, K. Wang, X. Mo, D. Zhang, and P. Lin, Corrosion Characteristics of Plasma-Sprayed Ni-Coated WC Coatings Comparison with Different Post-Treatment, Corros. Sci., 2007, 49, p 662-671

    Article  CAS  Google Scholar 

  8. G. Berard, P. Brun, J. Lacombe, G. Montavon, A. Denoirjean, and G. Antou, Influence of a Sealing Treatment on the Behavior of Plasma-Sprayed Alumina Coatings Operating in Extreme Environments, J. Therm. Spray Technol., 2008, 17(3), p 410-419

    Article  CAS  Google Scholar 

  9. Y. Zuo, P.-H. Zhao, and J.-M. Zhao, The Influences of Sealing Methods on Corrosion Behavior of Anodized Aluminum Alloys in NaCl Solutions, Surf. Coat. Technol., 2003, 166, p 237-242

    Article  CAS  Google Scholar 

  10. Q. Yang, F. Cai, L.R. Zhao, and X. Huang, Improving Corrosion Resistance of CrTiAlN Coating by Post-Deposition Treatments, Surf. Coat. Technol., 2008, 203, p 606-609

    Article  CAS  Google Scholar 

Download references

Acknowledgments

This study was financed by the Ministry of Education, Jiangsu Province of China. The authors wish to thank Ting Zhan and Changjian Han for their assistance in this experimental study.

Author information

Authors and Affiliations

  1. College of Mechanics and Materials, Hohai University, 1 Xikang Road, Nanjing, 210098, People’s Republic of China

    Jingjing Zhang, Zehua Wang, Wenhuan Lu, Zehua Zhou & Shaoqun Jiang

  2. Huazhong University of Science and Technology, Wuhan, 430078, People’s Republic of China

    Pinghua Lin

  3. Navy, 92056, People’s Republic of China

    Wenhuan Lu

Authors
  1. Jingjing Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Zehua Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Pinghua Lin
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Wenhuan Lu
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Zehua Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Shaoqun Jiang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Jingjing Zhang.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhang, J., Wang, Z., Lin, P. et al. Effect of Sealing Treatment on Corrosion Resistance of Plasma-Sprayed NiCrAl/Cr2O3-8 wt.%TiO2 Coating. J Therm Spray Tech 20, 508–513 (2011). https://doi.org/10.1007/s11666-010-9528-6

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11666-010-9528-6

Keywords

Search

Navigation