EFFECT OF ELECTRODEPOSITION TEMPERATURE ON CORROSION RESISTANCE OF CALCIUM PHOSPHATE

Autor:	Filip Pastorek, Branislav Hadzima, Miroslav Omasta, Mansour Mhaede
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	Calcium phosphate Magnesium alloy Electrochemical impedance spectroscopy Light microscopy Electrodeposition Mining engineering. Metallurgy TN1-997
Zdroj:	Acta Metallurgica Slovaca, Vol 20, Iss 2 (2014)
Druh dokumentu:	article
ISSN:	1335-1532 1338-1156
DOI:	10.12776/ams.v20i2.290
Popis:	Electrodeposition process of calcium phosphate (CaP) was performed at various temperatures on AZ31 magnesium alloy and the influence on corrosion resistance of the alloy covered by CaP was investigated by electrochemical tests supported by photodocumentation. The electrodeposition treatment was performed by potential controlled method in water solution of Ca(NO3)2.4H2O, NH4H2PO4 and H2O2. The difference in the process of CaP formation at various temperatures was described using diagrams of current density time dependence. Corrosion measurements were performed in 0.9% NaCl solution at 22 ± 2 °C using electrochemical impedance spectroscopy. According to corrosion resistance results, the optimal temperature for CaP electrodeposition process was chosen.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/42b7e72737104d7fa08acce9ea538e01 Zobrazit plný text záznamu View record in DOAJ