Detail publikace

Degradation of unconventional fluoride conversion coating on AZ61 magnesium alloy in SBF solution

FINTOVÁ, S. DRÁBIKOVÁ, J. HADZIMA, B. TRŠKO, L. BŘEZINA, M. DOLEŽAL, P. WASSERBAUER, J.

Originální název

Degradation of unconventional fluoride conversion coating on AZ61 magnesium alloy in SBF solution

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The paper offers an analysis of the corrosion process of the AZ61 magnesium alloy protected with the unconventionally prepared fluoride conversion coating using Na[BF4] salt melt. The protection of the magnesium alloy with the coating was shown to vary depending on the preparation temperature (430 and 450 °C) and coating time (0.5, 2 and 8 h). Lower coating temperature and shorter coating times offer lower protection of the material against corrosion. Similar corrosion mechanism was observed for all the damaged specimens. Migration of the species from the SBF to the substrate through the coating resulted in the coating damage due to the H2 evolution and corrosion products creation following with more pronounced corrosion attack of the substrate. However, no signs of the corrosion attack were observed when the coating was prepared at 430 °C for 8 h and at 450 °C for 2 and 8 h even after 168 h of exposure of the specimen to the simulated body fluid solution at 37 ± 2 °C.

Klíčová slova

AZ61 magnesium alloy; Na[BF4]; Fluoride conversion coating; Corrosion

Autoři

FINTOVÁ, S.; DRÁBIKOVÁ, J.; HADZIMA, B.; TRŠKO, L.; BŘEZINA, M.; DOLEŽAL, P.; WASSERBAUER, J.

Vydáno

25. 12. 2019

Nakladatel

Elsevier B.V. All rights reserved.

ISSN

0257-8972

Periodikum

Surface and Coatings Technology

Ročník

380

Číslo

1

Stát

Švýcarská konfederace

Strany od

1

Strany do

12

Strany počet

12

URL

https://www.sciencedirect.com/science/article/pii/S0257897219310035

BibTex

@article{BUT159448,
  author="Stanislava {Fintová} and Juliána {Drábiková} and Branislav {Hadzima} and Libor {Trško} and Matěj {Březina} and Pavel {Doležal} and Jaromír {Wasserbauer}",
  title="Degradation of unconventional fluoride conversion coating on AZ61 magnesium alloy in SBF solution",
  journal="Surface and Coatings Technology",
  year="2019",
  volume="380",
  number="1",
  pages="1--12",
  doi="10.1016/j.surfcoat.2019.125012",
  issn="0257-8972",
  url="https://www.sciencedirect.com/science/article/pii/S0257897219310035"
}