abstract
This work presents PEO coatings' mechanical and spectroscopic properties on magnesium alloys (AZ31) using Y2O3 additions. To increase the functionality of the coating, Y2O3 doped with erbium and ytterbium was used, making it possible to measure the surface temperature contactless. Using Er0.02Yb0.4Y1.58O3 in the PEO process allows the preparation of a layer that protects the magnesium alloy against corrosion and improves its mechanical properties. The structure and morphology of the coatings were characterized using XRD and SEM (surface and cross-section), and the chemical composition of the layer was determined using GDOES and EDS on both the surface and cross-sections. The physical properties of all samples were characterized through microhardness, wettability, and anticorrosion measurements. The contactless temperature measurements of the coatings were performed over a wide range of temperatures to check the most useful range of its use. It was shown that using Er0.02Yb0.4Y1.58O3 additives in PEO electrolytes to produce a coating for light metal alloys improves the mechanical properties of the surface and adds additional functionalities.
keywords
PLASMA ELECTROLYTIC OXIDATION; CORROSION-RESISTANCE; LUMINESCENCE; PARTICLES; FILMS; ER3+; AZ31; HO3+
subject category
Chemistry; Materials Science; Physics
authors
Gluchowski, P; Kujawa, D; Czekanowska, D; Chen, QQ; Musialek, A; Szustakiewicz, K; Smolina, I; Wu, T; Starykevich, M; Blawert, C; Serdechnova, M
our authors
Maksim Starykevich
Junior Researcheracknowledgements
The studies were funded by the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 823942-FUNCOAT-H2020-MSCA-RISE-2018.