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Investigating the Passivity and Dissolution of a Corrosion Resistant Mg-33at.%Li Alloy in Aqueous Chloride Using Online ICP-MS
- Source :
- Journal of The Electrochemical Society. 163:C324-C329
- Publication Year :
- 2016
- Publisher :
- The Electrochemical Society, 2016.
-
Abstract
- The corrosion and dissolution of a new magnesium-lithium (Mg-Li) alloy was studied using an electrochemical flow cell coupled with inductively coupled plasma-mass spectroscopy (ICP-MS) allowing real-time spectroelectrochemical analysis. The alloy studied is a corrosion resistant Mg-33at. % Li alloy, which possesses a body centered cubic matrix and a homogenous nanostructure. A detailed investigation of the dissolution kinetics of this alloy is important for understanding the origins of its apparently high corrosion resistance. Whilst the alloy composition ratio of Mg: Li is similar to 2, it was revealed that the dissolution ratio of metallic Mg: Li in 0.01 M NaCl was similar to 3.4 via downstream detection of ions. The deficiency of Li detected in the downstream electrolyte via ICP-MS was attributed to the development of a persistent Li-rich surface film that forms dynamically in the open circuit condition and for applied potentials below similar to-1050 mV(Ag/AgCl). For potentials positive to similar to-1050 mV(Ag/AgCl), significant Li ion detection in solution was observed, commensurate with the alloy compositional ratio.
- Subjects :
- Materials science
020209 energy
Alloy
Analytical chemistry
02 engineering and technology
Electrolyte
engineering.material
Electrochemistry
Chloride
Corrosion
Metal
0202 electrical engineering, electronic engineering, information engineering
Materials Chemistry
medicine
Dissolution
Aqueous solution
Renewable Energy, Sustainability and the Environment
Metallurgy
technology, industry, and agriculture
equipment and supplies
021001 nanoscience & nanotechnology
Condensed Matter Physics
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
visual_art
visual_art.visual_art_medium
engineering
0210 nano-technology
medicine.drug
Subjects
Details
- ISSN :
- 19457111 and 00134651
- Volume :
- 163
- Database :
- OpenAIRE
- Journal :
- Journal of The Electrochemical Society
- Accession number :
- edsair.doi...........83b7bdf6c3ed9a955efdb627a76468d2