Effect of D-fructose on the in-vitro corrosion behavior of AZ31 magnesium alloy in simulated body fluid  

作　　者：Durga Bhakta Pokharel Liping Wu Junhua Dong Xin Wei Ini-Ibehe Nabuk Etim Dhruba Babu Subedi Aniefiok Joseph Umoh Wei Ke 

机构地区：[1]Shenyang National Laboratory for Materials Science(SYNL),Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,China [2]School of Material Science and Engineering,University of Science and Technology of China,Hefei,230026,China [3]Department of Marine Biology,Akwa Ibom State University,Uyo,Nigeria

出　　处：《Journal of Materials Science & Technology》2021年第7期202-212,共11页材料科学技术（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No. 51701221);the National Key Research and Development program of China (No. 2017YFB0702302)。

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.

关 键 词：AZ31 Mg alloy D-FRUCTOSE SBF EIS Hydroxyapatite 

分 类 号：TG172[金属学及工艺—金属表面处理]