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Corrosion Resistance and Electrochemical Behaviour of Amorphous Ni84.9Cr7.4Si4.2Fe3.5 Alloy in Alkaline and Acidic Solutions
Han, Chao; Wei, Ying-Hua; Zhang, Hai-Feng; Zhu, Zheng-Wang; Li, Jing
2019-11-01
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume32Issue:11Pages:1421-1436
AbstractIn 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.
KeywordAmorphous alloy Corrosion Electrochemical impedance spectroscopy Potentiodynamic polarization Scanning electron microscopy
Indexed BySCI
Language英语
WOS IDWOS:000488930700013
PublisherCHINESE ACAD SCIENCES, INST METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80676
Collection中国科学院金属研究所
Recommended Citation
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.
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