Characterization of Corrosion Resistance of Silver-Hydroxyapetite (Ag-HA) Bio-Nanocomposite Coating

Basma Z.Thabeta; Suha I. Al-Nassarb; Hiba M. Algailani; Adel K. Mahmoud; Ramdziah Nasir; Ahmed AAG Alrubaiy

doi:10.24237/djes.2023.16103

Authors

Basma Z.Thabeta Department of Materials Engineering, University of Diyala, 32001 Diyala, Iraq
Suha I. Al-Nassarb 2Department of Communication Engineering, University of Diyala, 32001 Diyala,
Hiba M. Algailani Department of Engineering Affairs, University of Diyala, 32001 Diyala, Iraq
Adel K. Mahmoud
adel_alkayali@yahoo.com
Department of Materials Engineering, University of Diyala, 32001 Diyala, Iraq
Ramdziah Nasir School of Mechanical Engineering, Universiti Sains Malaysia, Malaysia
Ahmed AAG Alrubaiy Department of Materials Engineering, University of Diyala, 32001 Diyala, Iraq

Keywords:

HA-Nanoparticles, Ag-based nanocomposite coatings, Electroless deposition technique, Corrosion resistance

Abstract

Silver-hydroxyapatite (Ag-HA) nanocomposite coating on stainless steel (316L) sheets was prepared by electroless deposition. Several studies have analysed the influence of bath composition on the corrosion behaviour of Ag-HA bio-nanocomposite coating produced by electroless deposition. Therefore, the present study compared the influence of varying concentrations of HA nanoparticles (0.1, 0.3, and 0.5) g/L on the mechanical (microhardness) and chemical (corrosion resistance and ion release) properties of the Ag-HA nanocomposite coating. The Ag-HA nanocomposite coating exhibited a remarkable increase in microhardness from 104.7 Hv to 139.9 Hv at 0.5 g/L HA nanoparticles and improved corrosion resistance, where the corrosion rate was enhanced for the coating from 5.954×10-1 mpy to 2.633×10-2 mpy in the presence of nano-HA. The ion release analysis of the element coating revealed that the nickel content was within the permissible limit in accordance with the amount of Ni permitted to exist inside the human body, and chromium was not found.

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