Effect of twins on the corrosion behavior of Mg-5Y-7Gd-1Nd-0.5Zr Mg alloy

doi:10.1016/j.jallcom.2018.05.105

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	Effect of twins on the corrosion behavior of Mg-5Y-7Gd-1Nd-0.5Zr Mg alloy
	Liu, JH ; Han, EH ; Song, YW ; Shan, DY
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2018-08-15
卷号	757 页码:356-363
关键词	Metals and alloys Rare earth alloys and compounds Corrosion Twins
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2018.05.105
英文摘要	Deformation treatment is an efficient method to improve the mechanical properties of Mg alloys. However, twins inevitably arise during the deformation treatment due to the hexagonal closed-packed crystal structure of Mg. The role of twins in the corrosion behavior of Mg-5Y-7Gd-1Nd-0.5Zr (EW75) Mg alloy was studied by scanning electron microscopy (SEM) observations, scanning Kelvin probe force microscopy (SKPFM), zero-resistance ammeter (ZRA) measurements, scanning vibrating electrode technique (SVET), electrochemical tests and weight loss measurements. It is found that the micro-galvanic corrosion between twins and matrix plays the dual roles: accelerate the dissolution reaction of Mg substrate and promote the formation of surface film. The formation of compact surface film dominates the reactions in the EW75 alloy with twins. As a result, the twins in EW75 alloy can improve the corrosion resistance. (C) 2018 Elsevier B.V. All rights reserved.
学科主题	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000433609100043
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80023]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Liu, JH,Han, EH,Song, YW,et al. Effect of twins on the corrosion behavior of Mg-5Y-7Gd-1Nd-0.5Zr Mg alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,757:356-363.
APA	Liu, JH,Han, EH,Song, YW,&Shan, DY.(2018).Effect of twins on the corrosion behavior of Mg-5Y-7Gd-1Nd-0.5Zr Mg alloy.JOURNAL OF ALLOYS AND COMPOUNDS,757,356-363.
MLA	Liu, JH,et al."Effect of twins on the corrosion behavior of Mg-5Y-7Gd-1Nd-0.5Zr Mg alloy".JOURNAL OF ALLOYS AND COMPOUNDS 757(2018):356-363.