Effect of the Precipitated Phases on Corrosion Behavior of Mg-Y-Nd Ternary Alloy

doi:10.20964/2017.11.14

	Effect of the Precipitated Phases on Corrosion Behavior of Mg-Y-Nd Ternary Alloy
	Jiang, Quantong 1; Zhao, Xia1 ; Zhang, Kui 2; Li, Xinggang 2; Zhang, Jie1 ; Hou, Baorong 1
	2017-11-01
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷号	12 期号:11 页码:10199-10210
文章类型	Article
摘要	Mg-5Y-xNd alloys (x=0.5, 1.0, 1.5 wt.%) were investigated to reveal the influence of precipitated phase on corrosion resistance. The microstructure, precipitated phases and corrosion behaviors of different samples were analyzed by scanning electron microscope, energy dispersive spectrometer and X -Ray Diffraction. The volume fraction of the Mg-12(Y,Nd) phase increased, whereas that of the Mg3(Y,Nd) phase decreased with increasing Nd-content. The weight loss rate decreased from 10.9584 mg.cm(-2). d(-1) (23.0126 mm.y(-1)) to 6.2184 mg.cm(-2). d(-1) (13.0586 mm.y(-1)). The open circuit potential, potentiodynamic polarization curve, electrochemical impedance spectroscope and scanning kelvin probe confirmed that the corrosion rates of Mg-5Y-xNd alloys follow the order Mg-5Y-0.5Nd > Mg-5Y-1.0Nd > Mg-5Y-1.5Nd. This phenomenon occurred because the Mg3(Y,Nd) precipitated phase with a face-centered cubic lattice had a more positive potential than the Mg-12(Y,Nd) phase with an orthorhombic lattice. Thus, the Mg-3(Y,Nd) precipitated phase acted as the cathode of the electrochemical reaction, and accelerated the corrosion of the Mg matrix more effectively than the Mg12(Y,Nd) phase.
关键词	Mg-y-nd Alloy Microstructure Precipitated Phase Corrosion Resistance Electrochemistry
DOI	10.20964/2017.11.14
收录类别	SCI
语种	英语
WOS记录号	WOS:000417122400024
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/154313
专题	海洋环境腐蚀与生物污损重点实验室实验海洋生物学重点实验室海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Marine Corros & Protect Ctr, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Gen Res Inst Nonferrous Met, State Key Lab Nonferrous Met & Proc, Beijing 100088, Peoples R China
第一作者单位	海洋环境腐蚀与生物污损重点实验室
推荐引用方式 GB/T 7714	Jiang, Quantong,Zhao, Xia,Zhang, Kui,et al. Effect of the Precipitated Phases on Corrosion Behavior of Mg-Y-Nd Ternary Alloy[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2017,12(11):10199-10210.
APA	Jiang, Quantong,Zhao, Xia,Zhang, Kui,Li, Xinggang,Zhang, Jie,&Hou, Baorong.(2017).Effect of the Precipitated Phases on Corrosion Behavior of Mg-Y-Nd Ternary Alloy.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,12(11),10199-10210.
MLA	Jiang, Quantong,et al."Effect of the Precipitated Phases on Corrosion Behavior of Mg-Y-Nd Ternary Alloy".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 12.11(2017):10199-10210.

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