Publication detail

Improvement of corrosion resistence of magnesium alloy AZ61

TKACZ, J. NĚMCOVÁ, A. ZMRZLÝ, M. PACAL, B.

Original Title

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

Number

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"
}