November 18, 2024
Journal Article

Lithium nitrate salt-assisted CO2 absorption for the formation of corrosion barrier layer on AZ91D magnesium alloy

Abstract

The corrosion susceptibility of Mg alloys is one of the major issues limiting their wide industrial application in transportation, energy storage and medical application sectors. A corrosion-resistant layer containing crystalline MgCO3 was formed on the surface of AZ91D Mg alloy by Li salt loading and thermal CO2 treatment. The surface layer exhibited up to a ~15-fold increase in corrosion resistance according to the electrochemical results in 3.5 wt.% NaCl solution and more than 30% decrease in wear rate compared to untreated AZ91D. The improved corrosion resistance is attributed to the formation of

Published: November 18, 2024

Citation

Jang G.G., J. Jun, J.K. Keum, Y. Su, M. Pole, S. Niverty, and V.V. Joshi. 2024. Lithium nitrate salt-assisted CO2 absorption for the formation of corrosion barrier layer on AZ91D magnesium alloy. RSC Advances 14, no. 25:17696 - 17709. PNNL-SA-191974. doi:10.1039/D4RA02829E

Research topics

Lightweight Materials