Volume 10, Issue 4 (3-2022)                   2022, 10(4): 18-29 | Back to browse issues page

‎ 20.1001.1.23222352.1400.10.0.16.9

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Chaharmahali R, Fattah-alhosseini A. Effect of coating time on the corrosion behavior of ceramic coatings containing hydroxyapatite nanoparticles by plasma electrolytic oxidation method on AZ31 Mg alloy in simulated body fluid. Iranian Journal of Ceramic Science & Engineering 2022; 10 (4) :18-29
URL: http://ijcse.ir/article-1-864-en.html
Effect of coating time on the corrosion behavior of ceramic coatings containing hydroxyapatite nanoparticles by plasma electrolytic oxidation method on AZ31 Mg alloy in simulated body fluid
Razieh Chaharmahali1 , Arash Fattah-alhosseini *2
1- Bu-Ali Sina University
2- Bu-Ali Sina University , a.fattah@basu.ac.ir
Abstract:   (2271 Views)
In this study, the effect of coating time on the microstructure and corrosion behavior of AZ31 Mg alloy coated by plasma electrolytic oxidation (PEO) method has been investigated. For this purpose, phosphate-based electrolyte containing hydroxyapatite nanoparticles was used at different times of 5, 10 and 15 minutes. The surface properties and chemical composition of the coatings were investigated using scanning electron microscopy (SEM) and X-ray diffraction (XRD) pattern. The corrosion properties of coatings in the simulated body fluid have been studied by potentiodynamic polarization and electrochemical impedance spectroscopy tests. The results of this study showed that with increasing the coating time to 15 minutes, the size of the pores and the thickness of the coatings increased. The coating created in 10 minutes has the lowest percentage of porosity among the samples. The results also showed that the coating created in 10 minutes had the lowest corrosion current density (2.33 × 10-8 A/cm2) among the samples.
Keywords: AZ31 Mg alloy, plasma electrolytic oxidation (PEO), corrosion behavior, electrochemical impedance spectroscopy, potentiodynamic polarization.
Full-Text [PDF 1026 kb]   (418 Downloads)    
Type of Study: Research | Subject: Ceramic Coatings
Received: 2021/08/10 | Accepted: 2021/10/17
Add your comments about this article : Your username or Email:
CAPTCHA
Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.