Comparative Studies on Degradation Behavior of Pure Zinc in Various Simulated Body Fluids

Xiao Liu, Hongtao Yang, Yang Liu, Pan Xiong, Hui Guo, Her Hsiung Huang, Yufeng Zheng*

*此作品的通信作者

研究成果: Article同行評審

60 引文 斯高帕斯(Scopus)

摘要

The initial corrosion behavior of pure zinc during 168 h of immersion in Hanks’ solution, simulated body fluid (SBF), Dulbecco’s modified Eagles’ medium (DMEM), and DMEM with 10% fetal bovine serum (FBS) was investigated. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization were performed on samples after immersion. The morphology and chemical composition of corrosion products were determined by environment scanning electron microscope, x-ray diffraction, x-ray photoelectron spectroscopy, and Fourier transform infrared spectrometer. The results demonstrated that pure Zn degraded at a rate of 0.01 mm yr−1 to 0.02 mm yr−1 in DMEM and DMEM + FBS and exhibited the highest corrosion rate in SBF. It was shown that the composition of solution was crucial for the evaluation of degradation behavior in vitro. Insoluble salts formation and organic components in DMEM retarded the degradation of Zn. The presence of proteins increased the polarization resistance while it also exacerbated localized corrosion.

原文English
頁(從 - 到)1414-1425
頁數12
期刊JOM
71
發行號4
DOIs
出版狀態Published - 15 4月 2019

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