Corrosion Resistance and Electrochemical Behaviour of Amorphous Ni84.9Cr7.4Si4.2Fe3.5 Alloy in Alkaline and Acidic Solutions

doi:10.1007/s40195-019-00904-4

IMR OpenIR

	Corrosion Resistance and Electrochemical Behaviour of Amorphous Ni84.9Cr7.4Si4.2Fe3.5 Alloy in Alkaline and Acidic Solutions
	Han, Chao 1,2; Wei, Ying-Hua 1,2; Zhang, Hai-Feng 1,2; Zhu, Zheng-Wang 1,2; Li, Jing 1,2
通讯作者	Wei, Ying-Hua(yhwei@imr.ac.cn)
	2019-11-01
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	32 期号:11 页码:1421-1436
摘要	In this work, the corrosion behaviours of the amorphous Ni84.9Cr7.4Si4.2Fe3.5 alloy and its crystalline counterpart are studied in acidic, neutral, and alkaline solutions by scanning electron microscopy, electrochemical impedance spectroscopy, and potentiodynamic and potentiostatic polarization tests. X-ray photoelectron spectroscopy and scanning Kelvin probe are employed to characterize the alloy surface. The results show that the amorphous Ni84.9Cr7.4Si4.2Fe3.5 alloy presents a better corrosion resistance compared to its crystalline counterpart, which is attributed to the uniform energy distribution of the atoms on the amorphous alloy surface, and this presents as a uniform electric potential map to effectively suppress the occurrence of the corrosion cell reaction.
关键词	Amorphous alloy Corrosion Electrochemical impedance spectroscopy Potentiodynamic polarization Scanning electron microscopy
DOI	10.1007/s40195-019-00904-4
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000488930700013
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135783
专题	中国科学院金属研究所
通讯作者	Wei, Ying-Hua
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Han, Chao,Wei, Ying-Hua,Zhang, Hai-Feng,et al. Corrosion Resistance and Electrochemical Behaviour of Amorphous Ni84.9Cr7.4Si4.2Fe3.5 Alloy in Alkaline and Acidic Solutions[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(11):1421-1436.
APA	Han, Chao,Wei, Ying-Hua,Zhang, Hai-Feng,Zhu, Zheng-Wang,&Li, Jing.(2019).Corrosion Resistance and Electrochemical Behaviour of Amorphous Ni84.9Cr7.4Si4.2Fe3.5 Alloy in Alkaline and Acidic Solutions.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(11),1421-1436.
MLA	Han, Chao,et al."Corrosion Resistance and Electrochemical Behaviour of Amorphous Ni84.9Cr7.4Si4.2Fe3.5 Alloy in Alkaline and Acidic Solutions".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.11(2019):1421-1436.