Corrosivity of Sulphide Solutions Against Ni-P-TiO2-ZrO2 Electroless Nanocomposite Coatings


  • Manoj Kumar Department of Physics Graphic Era Deemed to be University, Dehradun, India
  • Manoj Kumar Dhiman Department of Physics Graphic Era Deemed to be University, Dehradun, India
  • Sulaxna Sharma Department of AS&H, THDC Institute of Hydropower Engineering and Technology, Tehri, India
  • Awanish Sharma Department of Physics Graphic Era Deemed to be University, Dehradun, India


Electroless, FESEM-EDAX, Ni-P-TiO2-ZrO2, Corrosion.


In surface engineering it is found that to incorporate nano particle into Ni-P matrix is very useful. In recent
investigation, the electroless Ni-P-TiO2-ZrO2 nano-composite plating has been deposited upon mild steel substrate
(AISI 1040). The 2.5 gpl each TiO2 and ZrO2 nano-particles were incorporated into an acidic electroless Ni-P
matrix as a second phase material and were reduced by a reducing chemical called as sodium hypophosphite
(Na2HPO3). The coating thickness is in micrometer range. After the coating, as-prepared Ni-P-TiO2-ZrO2 EL
deposition were heated at 400 C in Argon atmosphere for one hour duration to investigate the heat effect on
coatings and were analyzed by SEM/XRD/EDX methods. A homogeneous and weighty consistent allocation of
TiO2 and ZrO2 nano-particles into EL Ni-P matrix is recognized through analysis of SEM and EDAX methods.
From the corrosion test result it observed that he sulphide solutions with chloride are more corrosive than without
chloride. Sodium sulphide, thiosulphates and sodium chloride is suggested to be main corrosive chemicals. The
corrosion resistance of the conventional materials and Ni-P-TiO2-ZrO2 coated samples are in following order as
SS2205 > Ni-P-TiO2-ZrO2 (As-plated) > Ni-P-TiO2-ZrO2 (Heated) > MS.


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Journal of Graphic Era University

Vol. 7, Issue 1, 64-70, 2019

ISSN: 0975-1416 (Print), 2456-4281 (Online)

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How to Cite

Kumar, M., Dhiman, M. K., Sharma, S., & Sharma, A. (2023). Corrosivity of Sulphide Solutions Against Ni-P-TiO2-ZrO2 Electroless Nanocomposite Coatings. Journal of Graphic Era University, 7(1), 64–70. Retrieved from