Journal
BIOACTIVE MATERIALS
Volume 4, Issue -, Pages 87-96Publisher
KEAI PUBLISHING LTD
DOI: 10.1016/j.bioactmat.2018.08.003
Keywords
Zinc; Corrosion products; Saline; Degradation
Funding
- National Key R&D Program of China [2016YFC1102500]
- National Natural Science Foundation of China [51503014, 51501008]
- State Key Laboratory for Advanced Metals and Materials [2016Z-03]
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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(-1) after immersion for 336 h. Probable mechanisms of zinc corrosion products formation are presented.
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