Detail publikace
Effect of fluoride on plasma electrolytic oxidation of AZ61 magnesium alloy
NĚMCOVÁ, A. SKELDON, P. THOMPSON, G. PACAL, B.
Anglický název
Effect of fluoride on plasma electrolytic oxidation of AZ61 magnesium alloy
Typ
Článek recenzovaný mimo WoS a Scopus
Jazyk
en
Originální abstrakt
Plasma electrolytic oxidation has been carried out on AZ61 magnesium alloy in a silicate–phosphate electrolyte under pulsed current conditions. It is shown that the addition of fluoride to the electrolyte reduced localized corrosion that occurred near Al–Mn intermetallic particles before sparking begins. Such corrosion affected the uniformity of the PEO coating. On the other hand, fluoride ions caused significant loss of coating material during coating growth. Irrespective of the fluoride addition, the coatings contained Mg3(PO4)2, amorphous material and possibly MgO. However, fluoride strongly affected the rate of coating growth and the morphology of the coating. The loss of coating material is suggested to be due to the effects of fluoride ions on the intensity of the discharges and melting of the coating.
Klíčová slova anglicky
Magnesium alloy, Plasma electrolytic oxidation, Fluoride, Corrosion
Vydáno
2013-06-29
ISSN
0257-8972
Ročník
2013
Číslo
232
Strany od–do
827–838
Počet stran
12
BIBTEX
@article{BUT102631,
author="Aneta {Němcová} and Peter {Skeldon} and George {Thompson} and Bohumil {Pacal}",
title="Effect of fluoride on plasma electrolytic oxidation of AZ61 magnesium alloy",
journal="SURFACE & COATINGS TECHNOLOGY",
year="2013",
volume="2013",
number="232",
pages="827--838",
issn="0257-8972"
}