Corrosion characteristics of high entropy alloys

The present paper reports on the electrochemical properties of a wide range of high entropy alloys (HEAs) in a 0.6 M NaCl solution. A consolidated treatise of the topic has to date been lacking, and the purpose of the work herein is to present a primitive galvanic series for numerous HEAs, along wit...

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Bibliographic Details
Published inMaterials science and technology Vol. 31; no. 10; pp. 1235 - 1243
Main Authors Qiu, Y., Gibson, M. A., Fraser, H. L., Birbilis, N.
Format Journal Article
LanguageEnglish
Published London, England Taylor & Francis 01.07.2015
SAGE Publications
Subjects
Alloys
Austenitic stainless steels
Consolidation
Corrosion
Electrochemistry
Entropy
Galvanic series
High entropy alloy
Joining
Microstructure
Passivity
Polarisation
Polarisation
Electrochemistry
Corrosion
High entropy alloy
Microstructure
Galvanic series
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Summary:The present paper reports on the electrochemical properties of a wide range of high entropy alloys (HEAs) in a 0.6 M NaCl solution. A consolidated treatise of the topic has to date been lacking, and the purpose of the work herein is to present a primitive galvanic series for numerous HEAs, along with a broad survey of results typifying their electrochemical characteristics, passivity and comparative electrochemistry. The results are coupled with microstructural characterisation. The range of potentials for HEAs is comparable to or nobler than austenitic stainless steel, with a number of HEAs displaying higher pitting potential (E pit ) values than stainless steels, in spite of possessing heterogeneous microstructures.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0267-0836
1743-2847
DOI:10.1179/1743284715Y.0000000026