Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb2O5/Nb2O5–Mg/Mg layer by magnetron sputtering† † Electronic supplementary information (ESI) available. See https://doi.org/10.1039/d2ra04907d

ABSTRACT: Magnesium alloys are attracting increasing attention for the fabrication of temporary implants because of their superior biodegradability and biocompatibility. However, their high degradation rate under physiological conditions limits their clinical applications. In this work, a Nb2O5/Nb2O5–Mg/Mg multilayer coating was prepared on the surface of AZ31 magnesium alloy by magnetron sputtering in order to improve its corrosion resistance. The microstructure and performance of the layers were studied by SEM, AFM, EDS, and XPS, and a scratch tester, nanoindenter, friction tester, and electrochemical workstation, using Nb2O5 monolayer coating as a control. The results show that these two coatings significantly improved the mechanical, tribological, and anticorrosion performance of AZ31 magnesium

SUBMITTER: Ding Z 

PROVIDER: S-EPMC9540408 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature