Initial formation of corrosion products on pure zinc in saline solution.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 30723841.
- Also identified by DOI 10.1016/j.bioactmat.2018.08.003 and PMC identifier 6351358.
- Licence recorded as CC BY-NC-ND.
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Abstract
Corrosion product formed on zinc sample during 2 weeks immersion in saline solution has been investigated. The corrosion layer morphology as well as its chemical composition, was analyzed using scanning electron microscopy (SEM), x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). Electrochemical measurement was used to analyze the corrosion behavior. Zinc oxide, zinc hydroxide and zinc hydroxide chloride were formed on zinc surface in saline solution. The thickness of corrosion layer increased with the time increased. The pure Zn has an estimated corrosion rate of 0.063 mm y<sup>-1</sup> after immersion for 336 h. Probable mechanisms of zinc corrosion products formation are presented.