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Attain insensitivity to chlorine ions in magnesium alloys by impeding the diffusion process.
- Source :
- NPJ Materials Degradation; 1/13/2024, Vol. 8 Issue 1, p1-12, 12p
- Publication Year :
- 2024
-
Abstract
- To serve in a more aggressive chlorine (Cl<superscript>−</superscript>) ions-containing environment, a chlorine ions insensitivity Mg-Nd-Zr alloys is fabricated, exhibiting a stable corrosion resistance in either 3.5wt.% or 10 wt.% NaCl solution. Unlike pure Mg who exhibit a negligible protection of the matrix, a distinct "hindering effect" of Cl<superscript>−</superscript> diffusion caused by doping elements within the corrosion film was observed. Its underlying mechanism is demonstrated by X-ray photoelectron spectroscopy (XPS) and Density functional theory (DFT) analysis. The introducing with Nd and Zr elements can effectively passivate vacancies and alter diffusion energy of chlorine ions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23972106
- Volume :
- 8
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- NPJ Materials Degradation
- Publication Type :
- Academic Journal
- Accession number :
- 174800628
- Full Text :
- https://doi.org/10.1038/s41529-023-00423-9