Publication detail

MICROSTRUCTURE AND ELECTROCHEMICAL CORROSION BEHAVIOR OF CAP/PEO DUPLEX COATING ON AZ31 MAGNESIUM ALLOY

BRESCHER, R. BUCHTÍK, M. HASOŇOVÁ, M. BŘEZINA, M. KAJÁNEK, D. WASSERBAUER, J. DOSKOČIL, L.

Original Title

MICROSTRUCTURE AND ELECTROCHEMICAL CORROSION BEHAVIOR OF CAP/PEO DUPLEX COATING ON AZ31 MAGNESIUM ALLOY

Type

conference paper

Language

English

Original Abstract

Plasma electrolytic oxidation (PEO) coatings with and without calcium phosphate (CaP) were prepared on AZ31 magnesium alloy including the CaP coating on AZ31 alloy. The microstructure of all coatings was characterized using an electron scanning microscope with energy dispersive spectroscopy (SEM/EDS). The PEO coating revealed the presence of many pores and microcracks on its surface. The deposition of CaP on the PEO layer led to the cover of these microstructural defects. Potentiodynamic polarization in 0.15 M NaCI medium showed that CaP/PEO, CaP and PEO coatings led to the improvement in the corrosion resistance when compared to bare AZ31 alloy. However, the corrosion resistance of CaP/PEO duplex coating was lower than PEO coating even though the CaP crystals covered the pores and microstructural defects. © METAL 2022. All rights reserved.

Keywords

AZ31 alloy; calcium phosphate; coating; corrosion; Plasma electrolytic oxidation

Authors

BRESCHER, R.; BUCHTÍK, M.; HASOŇOVÁ, M.; BŘEZINA, M.; KAJÁNEK, D.; WASSERBAUER, J.; DOSKOČIL, L.

Released

18. 5. 2022

ISBN

9781713862307

Book

31st International Conference on Metallurgy and Materials, METAL 2022

Pages from

500

Pages to

505

Pages count

6

URL

https://www.scopus.com/record/display.uri?eid=2-s2.0-85144109477&origin=inward&txGid=e5f68397989de76fc89081f11b86ab8d

BibTex

@inproceedings{BUT182909,
  author="Martin {Buchtík} and Michaela {Hasoňová} and Matěj {Březina} and Jaromír {Wasserbauer} and Leoš {Doskočil} and Roman {Brescher} and Daniel {Kajánek}",
  title="MICROSTRUCTURE AND ELECTROCHEMICAL CORROSION BEHAVIOR OF CAP/PEO DUPLEX COATING ON AZ31 MAGNESIUM ALLOY",
  booktitle="31st International Conference on Metallurgy and Materials, METAL 2022",
  year="2022",
  pages="500--505",
  doi="10.37904/metal.2022.4483",
  isbn="9781713862307",
  url="https://www.scopus.com/record/display.uri?eid=2-s2.0-85144109477&origin=inward&txGid=e5f68397989de76fc89081f11b86ab8d"
}