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TKACZ, J. NĚMCOVÁ, A. ZMRZLÝ, M. PACAL, B.
Original Title
Improvement of corrosion resistence of magnesium alloy AZ61
Type
journal article - other
Language
English
Original Abstract
This paper deals with the investigation of corrosion resistance of extruded AZ61 magnesium alloy. The phosphatepermanganate conversion coating was prepared on the surface of experimental alloy to improve corrosion resistance. This conversion coating was prepared like alternative to the chromating process which proved greatly results on magnesium alloys. Nevertheless, the use of chromates is limited by the environmental regulations in Europe. The corrosion resistance of extruded AZ61 magnesium alloy with and without conversion coating was tested by immersion test. The samples were immersed in sodium chloride solution (3.5 %) with immersion times 1, 8, 48 and 168 hours. The weight losses were measured at analytical balances (d = 0.1 mg) and expressed as corrosion rate in [mm year-1]. Microstructure, surface morphology of conversion coating and corrosion attack were observed by light and scanning electron microscope.
Keywords
Magnesium alloy AZ61, conversion coating, corrosion resistance.
Authors
TKACZ, J.; NĚMCOVÁ, A.; ZMRZLÝ, M.; PACAL, B.
RIV year
2012
Released
14. 12. 2012
ISBN
1804-1213
Periodical
Koroze a ochrana materiálu. (on-line) Asociace korozních inženýrů JK
Year of study
56
Number
4
State
Czech Republic
Pages from
100
Pages to
103
Pages count
BibTex
@article{BUT96911, author="Jakub {Tkacz} and Aneta {Němcová} and Martin {Zmrzlý} and Bohumil {Pacal}", title="Improvement of corrosion resistence of magnesium alloy AZ61", journal="Koroze a ochrana materiálu. (on-line) Asociace korozních inženýrů JK", year="2012", volume="56", number="4", pages="100--103", issn="1804-1213" }