Publication detail

Improvement of electrochemical corrosion characteristics of AZ61 magnesium alloy with unconventional fluoride conversion coatings

FINTOVÁ, S. DRÁBIKOVÁ, J. PASTOREK. F. TKACZ, J. KUBĚNA, I. TRŠKO, L. HADZIMA, B. MINDA, J. DOLEŽAL, P. WASSERBAUER, J. PTÁČEK, P.

Original Title

Improvement of electrochemical corrosion characteristics of AZ61 magnesium alloy with unconventional fluoride conversion coatings

English Title

Improvement of electrochemical corrosion characteristics of AZ61 magnesium alloy with unconventional fluoride conversion coatings

Type

journal article in Web of Science

Language

en

Original Abstract

Fluoride conversion coating was applied on wrought AZ61 magnesium alloy by the immersion of alloy in Na[BF4] molten salt. Two different temperatures 430 °C and 450 °C, and different treatment times of 0.5; 2 and 8 h were used for the coating preparation. The surface morphology and the cross-sections of the coatings were investigated by scanning electron microscopy, focused ion beam cutting and energy-dispersive X-ray spectroscopy. The electrochemical corrosion characteristics of coated material varied with processing conditions. A significant improvement of electrochemical corrosion properties of the AZ61 magnesium alloy coated with fluoride conversion coatings was revealed by the potentiodynamic tests and electrochemical impedance spectroscopy.

English abstract

Fluoride conversion coating was applied on wrought AZ61 magnesium alloy by the immersion of alloy in Na[BF4] molten salt. Two different temperatures 430 °C and 450 °C, and different treatment times of 0.5; 2 and 8 h were used for the coating preparation. The surface morphology and the cross-sections of the coatings were investigated by scanning electron microscopy, focused ion beam cutting and energy-dispersive X-ray spectroscopy. The electrochemical corrosion characteristics of coated material varied with processing conditions. A significant improvement of electrochemical corrosion properties of the AZ61 magnesium alloy coated with fluoride conversion coatings was revealed by the potentiodynamic tests and electrochemical impedance spectroscopy.

Keywords

Wrought AZ61 magnesium alloy; Potentiodynamic tests; Electrochemical impedance spectroscopy; Corrosion; Fluoride conversion coating

Released

15.01.2019

Publisher

Elsevier

Pages from

638

Pages to

650

Pages count

13

URL

BibTex


@article{BUT151345,
  author="Stanislava {Fintová} and Juliána {Drábiková} and Jakub {Tkacz} and Ivo {Kuběna} and Branislav {Hadzima} and Jozef {Minda} and Pavel {Doležal} and Jaromír {Wasserbauer} and Petr {Ptáček}",
  title="Improvement of electrochemical corrosion characteristics of AZ61 magnesium alloy with unconventional fluoride conversion coatings",
  annote="Fluoride conversion coating was applied on wrought AZ61 magnesium alloy by the immersion of alloy in Na[BF4] molten salt. Two different temperatures 430 °C and 450 °C, and different treatment times of 0.5; 2 and 8 h were used for the coating preparation. The surface morphology and the cross-sections of the coatings were investigated by scanning electron microscopy, focused ion beam cutting and energy-dispersive X-ray spectroscopy. The electrochemical corrosion characteristics of coated material varied with processing conditions. A significant improvement of electrochemical corrosion properties of the AZ61 magnesium alloy coated with fluoride conversion coatings was revealed by the potentiodynamic tests and electrochemical impedance spectroscopy.",
  address="Elsevier",
  chapter="151345",
  doi="10.1016/j.surfcoat.2018.10.038",
  howpublished="online",
  institution="Elsevier",
  number="1",
  volume="357",
  year="2019",
  month="january",
  pages="638--650",
  publisher="Elsevier",
  type="journal article in Web of Science"
}