Original scientific paper
https://doi.org/10.5599/jese.1931
Comparative corrosion behavior of Au50-Ag25-Pd25 and Ni88.6-Cr11.4 alloys utilized in dental applications
Irfan Liaquat
orcid.org/0000-0002-0882-3269
; Institute of Physics, Bahauddin Zakariya University, Multan-60800, Pakistan
*
Amer Bashir Ziya
; Institute of Physics, Bahauddin Zakariya University, Multan-60800, Pakistan
Warda Mushtaq
; Institute of Physics, Bahauddin Zakariya University, Multan-60800, Pakistan
Athar Ibrahim
; Department of Metallurgical Engineering and Materials Science, University of Engineering and Technology, Lahore, Pakistan
Urva Malik
; Department of Metallurgical Engineering and Materials Science, University of Engineering and Technology, Lahore, Pakistan
Gao Qilong
; School of Physical and Microelectronics Zhengzhou University, Zhengzhou 450001, China
Muhammad Danial
; Department of Physics, University of Education, Lahore, Pakistan
* Corresponding author.
Abstract
The electrochemical behaviour of alloys (Au50-Ag25-Pd25 and Ni88.6-Cr11.4) was studied in Fusayama's artificial saliva at pH 6.5 and 37 °C by using open circuit potential, electrochemical impedance spectroscopy, and potentiodynamic polarization measurements. Electrochemical impedance spectroscopy results were simulated with an equivalent electrical circuit. After immersion in artificial saliva, surface characterization of samples was done using scanning electron microscopy connected with energy-dispersive spectroscopy. All obtained results revealed that Au50-Ag25-Pd25 alloy is much more resistive than Ni88.6-Cr11.4 and can be recommended for the effective treatment of patients with dental prosthetics that have metal frameworks.
Keywords
Dental alloys; gold-silver-palladium; nickel-chromium; corrosion; electrochemical tests; surface morphology
Hrčak ID:
311021
URI
Publication date:
7.12.2023.
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