EFFECT OF SURFACE PRETREATMENT ON THE FORMATION AND PROTECTIVENESS OF PEO LAYERS ON PURE MAGNESIUM AND WE43 ALLOY
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10511844" target="_blank" >RIV/00216208:11320/25:10511844 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.37904/metal.2025.5099" target="_blank" >https://doi.org/10.37904/metal.2025.5099</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/metal.2025.5099" target="_blank" >10.37904/metal.2025.5099</a>
Alternative languages
Result language
angličtina
Original language name
EFFECT OF SURFACE PRETREATMENT ON THE FORMATION AND PROTECTIVENESS OF PEO LAYERS ON PURE MAGNESIUM AND WE43 ALLOY
Original language description
Plasma electrolytic oxidation (PEO) has emerged as a promising surface modification technique to enhance corrosion resistance of magnesium alloys. This study investigates the influence of different surface pretreatments: polishing, grinding, and shot-peening, on the formation and performance of PEO coatings on pure magnesium and WE43 (Mg-4Y-3RE) alloy. SEM analysis was used to characterise the coating morphology, while electrochemical impedance spectroscopy was employed to monitor corrosion behaviour over 168-hour period. The results reveal that PEO significantly improves corrosion resistance in both materials, with polished samples exhibiting the highest initial polarisation resistance. Interestingly, shot-peening had a detrimental effect on corrosion resistance in pure magnesium after longer immersion period but resulted in improved performance for WE43, attributed to the beneficial interaction between deformation-induced lattice defects and rare earth elements. These findings highlight the complex relationship between alloy composition, surface preparation, and corrosion behaviour.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GA24-10626S" target="_blank" >GA24-10626S: Modern surface treatments of biodegradable magnesium alloys for tailored degradation rate</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
2025 : 34th International Conference on Metallurgy and Materials : conference proceedings
ISBN
978-80-88365-27-3
ISSN
2694-9296
e-ISSN
2694-9296
Number of pages
7
Pages from-to
403-409
Publisher name
Tanger Ltd.
Place of publication
Brno
Event location
Brno
Event date
May 21, 2025
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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