Publication detail

PREPARATION OF PEO COATINGS ON AZ31 MAGNESIUM ALLOY IN THE PRESENCE OF HUMIC ACID

DOSKOČIL, L. ŠOMANOVÁ, P. WASSERBAUER, J. KAJÁNEK, D. BUCHTÍK, M.

Original Title

PREPARATION OF PEO COATINGS ON AZ31 MAGNESIUM ALLOY IN THE PRESENCE OF HUMIC ACID

Type

conference paper

Language

English

Original Abstract

Magnesium materials are desirable for surface treatment because of their low corrosion resistance. The preparation of coatings on AZ31 alloy by plasma electrolytic oxidation (PEO) in a bath with and without humic acid was investigated. The coatings were characterized using a scanning electron microscope (SEM) with energy dispersive X-ray spectroscopy (EDS) and Fourier transform infrared spectroscopy (FTIR). The corrosion properties were tested using the potentiodynamic polarization method in 0.15 M NaCl. The results show that the PEO coatings had significantly higher corrosion resistance than the AZ31 alloy. The PEO coating prepared in the presence of 5 mg/l humic acid (10 min deposition) appeared to have slightly better corrosion resistance than the PEO coating prepared in the absence of humic acid.

Keywords

Magnesium alloys, humic acid, corrosion

Authors

DOSKOČIL, L.; ŠOMANOVÁ, P.; WASSERBAUER, J.; KAJÁNEK, D.; BUCHTÍK, M.

Released

6. 6. 2024

Publisher

Tanger Ltd

Location

Ostrava

ISBN

2694-9296

Periodical

28th International Conference on Metallurgy and Materials

State

Czech Republic

Pages from

512

Pages to

516

Pages count

5

URL

https://www.confer.cz/metal/2023/4713-preparation-of-peo-coatings-in-the-presence-of-humic-acid-on-az31-magnesium-alloy

Full text in the Digital Library

http://hdl.handle.net/11012/249897

BibTex

@inproceedings{BUT193530,
  author="Leoš {Doskočil} and Pavlína {Šomanová} and Jaromír {Wasserbauer} and Daniel {Kajánek} and Martin {Buchtík}",
  title="PREPARATION OF PEO COATINGS ON AZ31 MAGNESIUM ALLOY IN THE PRESENCE OF HUMIC ACID",
  booktitle="32ND INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS, METAL 2023",
  year="2024",
  journal="28th International Conference on Metallurgy and Materials",
  pages="512--516",
  publisher="Tanger Ltd",
  address="Ostrava",
  doi="10.37904/metal.2023.4713",
  issn="2694-9296",
  url="https://www.confer.cz/metal/2023/4713-preparation-of-peo-coatings-in-the-presence-of-humic-acid-on-az31-magnesium-alloy"
}