Detail publikace
Structure and Corrosion Resistance of Fluoride Coating Prepared on Magnesium Material
BŘEZINA, M. KOBZINKOVÁ, E. BUCHTÍK, M. DOSKOČIL, L.
Originální název
Structure and Corrosion Resistance of Fluoride Coating Prepared on Magnesium Material
Typ
abstrakt
Jazyk
angličtina
Originální abstrakt
Fluoride conversion coatings are perspective surface treatments for reducing corrosion rate of magnesium and Fluoride conversion coatings are perspective surface treatments for reducing corrosion rate of magnesium and its alloys. This work focuses on the preparation of fluoride conversion coating on magnesium material prepared by powder metallurgy. The base material was prepared by compacting powder magnesium into cylinders 20 mm in diameter and 5 mm thick using 400 MPa of uniaxial pressure. The green compacts were sintered in argon atmosphere at 600 °C for 12h. The coating was prepared by dipping the magnesium materials in molten Na[BF4] salt at 430 °C, the preparation times were 1, 2, 4 and 8 h. The effect of fluoride coating preparation time on thickness and structure of the coating was investigated by mainly two methods. Corrosion resistance was measured by potentiodynamic polarisation in NaCl solution, the structure and thickness of the coating was measured by SEM-EDS (Scanning electron Microscope – Energy Dispersive Spectroscopy) method. The corrosion current decreased significantly with increasing preparation time of the coating. This finding is in correlation with SEM-EDS observation, which confirmed thicker coating layer with increasing preparation time. The structure of the coating was not uniform; however, the coating was predominantly formed on the surface of the individual powder particles from which the base material was formed.
Klíčová slova
Magnesium; Powder metallurgy; Corrosion; Fluoride conversion coatings
Autoři
BŘEZINA, M.; KOBZINKOVÁ, E.; BUCHTÍK, M.; DOSKOČIL, L.
Vydáno
21. 5. 2025
Nakladatel
TANGER Ltd.
Místo
Ostrava
ISBN
978-80-88365-26-6
Kniha
Abstracts, Metal 2025
Edice
1st edition
Číslo edice
1
Strany od
58
Strany do
58
Strany počet
86
BibTex
@misc{BUT197985,
author="Matěj {Březina} and Eliška {Kobzinková} and Martin {Buchtík} and Leoš {Doskočil}",
title="Structure and Corrosion Resistance of Fluoride Coating Prepared on Magnesium Material",
booktitle="Abstracts, Metal 2025",
year="2025",
series="1st edition",
edition="1",
pages="58--58",
publisher="TANGER Ltd.",
address="Ostrava",
isbn="978-80-88365-26-6",
note="abstract"
}