Effect of D-fructose on the in-vitro corrosion behavior of AZ31 magnesium alloy in simulated body fluid
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2021年第7期
论文作者：Durga Bhakta Pokharel Liping Wu Junhua Dong Xin Weia Ini-Ibehe Nabuk Etim Dhruba Babu Subedi Aniefiok Joseph Umoh Wei Ke
文章页码：202 - 212
摘 要：The effect of addingd-fructose to simulated body fluid（SBF） on the corrosion behavior of AZ31 magnesium（Mg） alloy at 37.C and at a pH of 7.4 was studied by potentiodynamic polarization（PDP）, electrochemical impedance spectroscopy（EIS）, potentiostatic polarization and hydrogen（H2） collecting techniques,Raman spectroscopy technique, scanning electron microscopy（SEM）, energy dispersive spectroscopy（EDS）, X-ray diffraction（XRD）, X-ray photoelectron spectroscopy analysis（XPS） and Fourier transformed infrared（FTIR）. The results demonstrated that the addition of fructose enhanced the deposition of phosphates forming thick and compact corrosion products, which inhibited the transmission of aggressive ions into the Mg substrate. As a result, both the anodic dissolution of Mg and negative difference effect（NDE） were suppressed. Thus, the corrosion resistance of AZ31 Mgalloy in SBF was significantly improved.
Durga Bhakta Pokharel1,2，Liping Wu1，Junhua Dong1,2，Xin Weia1，Ini-Ibehe Nabuk Etim1,3，Dhruba Babu Subedi1,2，Aniefiok Joseph Umoh1,2，Wei Ke1
1. Shenyang National Laboratory for Materials Science (SYNL), Institute of Metal Research, Chinese Academy of Sciences2. School of Material Science and Engineering, University of Science and Technology of China3. Department of Marine Biology, Akwa Ibom State University
摘 要：The effect of addingd-fructose to simulated body fluid（SBF） on the corrosion behavior of AZ31 magnesium（Mg） alloy at 37.C and at a pH of 7.4 was studied by potentiodynamic polarization（PDP）, electrochemical impedance spectroscopy（EIS）, potentiostatic polarization and hydrogen（H2） collecting techniques,Raman spectroscopy technique, scanning electron microscopy（SEM）, energy dispersive spectroscopy（EDS）, X-ray diffraction（XRD）, X-ray photoelectron spectroscopy analysis（XPS） and Fourier transformed infrared（FTIR）. The results demonstrated that the addition of fructose enhanced the deposition of phosphates forming thick and compact corrosion products, which inhibited the transmission of aggressive ions into the Mg substrate. As a result, both the anodic dissolution of Mg and negative difference effect（NDE） were suppressed. Thus, the corrosion resistance of AZ31 Mgalloy in SBF was significantly improved.
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