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POTENTIODYNAMIC POLARIZATION OF AZ31 MAGNESIUM ALLOY WITH DCPD
Authors:
Filip Pastorek1
, Adrián Bača1, Zuzana Florková1
1Research Centre of the University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Received: 11.04.2017.
Accepted: 10.05.2017.
Available: 31.05.2017.
Abstract:
Potentiodynamic polarization is the main laboratory technique used for the most relevant electrochemical corrosion characteristics determination. The Mg-3Al-1Zn biodegradable alloy electrodeposited by dicalcium phosphate dihydrate (DCPD) coating was investigated in this study. The 0.9 % NaCl solution simulating human body chloride concentration environment was used as a corrosion electrolyte. Testing temperature corresponded to human body fluids temperature (37 °C). Electrodeposition of DCPD was realized in water solution of Ca(NO3)2.4H2O, NH4HPO4 and H2O2. The influence of this surface treatment on corrosion potential and corrosion current density was evaluated. Basic potentiodynamic curves, obtained from the voltamperometric tests, were analyzed by the Tafel analyses. The improvement of the short-time electrochemical behavior after the DCPD electrodeposition on tested alloy surface was reported.
Keywords:
Magnesium alloy; Potentiodynamic polarization tests; Calcium phosphate; Light microscopy; Electrodeposition
References:
[1] X. Zhang, Q. Li, L. Li, P. Zhang, Z. Wang, F. Chen, Fabrication of hydroxyapatite/stearic acid composite coating and corrosion behavior of coated magnesium alloy, Mater. Letters, 88(-), 2012: pp.76-78. https://doi.org/10.1016/j.matlet.2012.08.011
[2] Ch.Y. Zhang, R.Ch. Zeng, R.S. Chen, Ch.L. Liu, J.Ch. Gao, Preparation of calcium phosphate coatings on Mg-1.0Ca alloy, Trans. Nonferrous Met. Soc. China, 20(-), 2010: pp.s655-s659.
[3] J. Sánchez-Enriquez, J. Reyes-Gasga, Obtaining Ca(H2PO4)2.H2O, monocalcium phosphate log i (mA/cm²)E (mV) monohydrate, via monetite from brushite by using sonication, Ultrasonics Sonochemistry, 20(-), 2013: pp.948-954.
[4] ASM Handbook, Metallography and Microstructures, Vol.9, Ed: G.F. Van der Voort, ASM International, New York, 2004.
[5] Y.W. Song, D.Y. Shan, E.H. Han, Electrodeposition of hydroxyapatite coating on AZ91D magnesium alloy for biomaterial application, Mater. Letters, 62(-), 2008, pp.3276-3279.
[6] T. Liptaková, Pitting Corrosion of Stainless Steels, EDIS ZU v Žiline, 2009. (in Slovak)
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)
Volume 10
Number 3
September 2025
Last Edition
Volume 10
Number 3
September 2025
How to Cite
F. Pastorek, A. Bača, Z. Florková, Potentiodynamic polarization of AZ31 Magnesium Alloy With DCPD. Applied Engineering Letters, 2(2), 2017: 61-64.
More Citation Formats
Pastorek, F., Bača, A., & Florková, Z. (2017). Potentiodynamic polarization of AZ31 Magnesium Alloy With DCPD. Applied Engineering Letters, 2(2), 61-64.
Filip, Pastorek, et al. “Potentiodynamic polarization of AZ31 Magnesium Alloy With DCPD.“ Applied Engineering Letters, vol. 2, no. 2, 2017, pp. 61-64.
Pastorek, Filip, Adrián Bača, and Zuzana Florková. 2017. “Potentiodynamic polarization of AZ31 Magnesium Alloy With DCPD.“ Applied Engineering Letters, 2 (2): 61-64.
Pastorek, F., Bača, A. and Florková, Z. (2017). Potentiodynamic polarization of AZ31 Magnesium Alloy With DCPD. Applied Engineering Letters, 2(2), 61-64.
Journal Menu
Archive
POTENTIODYNAMIC POLARIZATION OF AZ31 MAGNESIUM ALLOY WITH DCPD
Authors:
Filip Pastorek1
, Adrián Bača1, Zuzana Florková1
1Research Centre of the University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Received: 11.04.2017.
Accepted: 10.05.2017.
Available: 31.05.2017.
Abstract:
Potentiodynamic polarization is the main laboratory technique used for the most relevant electrochemical corrosion characteristics determination. The Mg-3Al-1Zn biodegradable alloy electrodeposited by dicalcium phosphate dihydrate (DCPD) coating was investigated in this study. The 0.9 % NaCl solution simulating human body chloride concentration environment was used as a corrosion electrolyte. Testing temperature corresponded to human body fluids temperature (37 °C). Electrodeposition of DCPD was realized in water solution of Ca(NO3)2.4H2O, NH4HPO4 and H2O2. The influence of this surface treatment on corrosion potential and corrosion current density was evaluated. Basic potentiodynamic curves, obtained from the voltamperometric tests, were analyzed by the Tafel analyses. The improvement of the short-time electrochemical behavior after the DCPD electrodeposition on tested alloy surface was reported.
Keywords:
Magnesium alloy; Potentiodynamic polarization tests; Calcium phosphate; Light microscopy; Electrodeposition
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)
Volume 10
Number 3
September 2025
Last Edition
Volume 10
Number 3
September 2025