Effect of glycine addition on the in-vitro corrosion behavior of AZ31 magnesium alloy in Hank's solution

doi:10.1016/j.jmst.2021.01.007

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	Effect of glycine addition on the in-vitro corrosion behavior of AZ31 magnesium alloy in Hank's solution
	Pokharel, Durga Bhakta 2,3; Wu, Liping 1; Dong, Junhua 2,3; Yadav, Amar Prasad 2,4; Subedi, Dhruba Babu 2,3; Dhakal, Madhusudan 2,3; Zha, Lin 1; Mu, Xin 2; Umoh, Aniefiok Joseph 2,3; Ke, Wei 1
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2021-08-10
卷号	81 页码:97-107
关键词	AZ31 Mg alloy Glycine Hank's solution EIS Chelating effect
ISSN号	1005-0302
DOI	10.1016/j.jmst.2021.01.007
通讯作者	Dong, Junhua(ihdong@imr.ac.cn)
英文摘要	This study reports on the effect of the addition of Glycine to Hank's solution on the in-vitro corrosion behavior of AZ31 magnesium (Mg) alloy at 37 degrees C and a pH of 7.4 studied by using potentiodynamic polarization (PDP), hydrogen collecting techniques and electrochemical impedance spectroscopy (EIS) in combination with surface characterization techniques such as optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy analysis (XPS). The results reveal that adsorption of glycine initially subdues the dissolution of AZ31 Mg alloy while in long run it enhances the dissolution of the alloy due to the commencement of the chelation effect of glycine with Ca2+ released from hydroxyapatite. The chelation of glycine with Ca2+ induces the formation of cracks in the surface film which further promotes the dissolution of AZ31 Mg alloy thereby forming a porous corrosion products layer on the surface of the alloy. As a result, both the continuous dissolution of AZ31 magnesium alloy and the hydrogen evolution rate (HER) are enhanced with increasing the immersion time in Hank's solution. (c) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Natural Science Foundation of China[51701221] ; National Natural Science Foundation of China[51801219] ; National Key Research and Development Program of China[2017YFB0702302]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000658560600011
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160337]
专题	金属研究所_中国科学院金属研究所
通讯作者	Dong, Junhua
作者单位	1.Chinese Acad Sci, Environm Corros Ctr, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci SYNL, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 4.Tribhuvan Univ, Cent Dept Chem, Kirtipur, Nepal
推荐引用方式 GB/T 7714	Pokharel, Durga Bhakta,Wu, Liping,Dong, Junhua,et al. Effect of glycine addition on the in-vitro corrosion behavior of AZ31 magnesium alloy in Hank's solution[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,81:97-107.
APA	Pokharel, Durga Bhakta.,Wu, Liping.,Dong, Junhua.,Yadav, Amar Prasad.,Subedi, Dhruba Babu.,...&Ke, Wei.(2021).Effect of glycine addition on the in-vitro corrosion behavior of AZ31 magnesium alloy in Hank's solution.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,81,97-107.
MLA	Pokharel, Durga Bhakta,et al."Effect of glycine addition on the in-vitro corrosion behavior of AZ31 magnesium alloy in Hank's solution".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 81(2021):97-107.