Corrosion characteristics of high entropy alloys
By Y. Qiu, M. Gibson, H. L. Fraser, N. Birbilis. 2015
187 citations recorded by the source corpus.
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 (Epit) values than stainless steels, in spite of possessing heterogeneous microstructures.
Subfields: Aerospace Engineering, Mechanical Engineering, Metals and Alloys
View Paper: https://www.semanticscholar.org/paper/feffa8a76d8d152ba03c820414e34cb1c2b8d544
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Citations in the corpus
- Microstructural evolution, electrochemical and corrosion properties of Al CoCrFeNiTi high entropy alloys (2019, methodology): “In certain instances, when the CoCrFeNi alloy was prepared by spark plasma sintering, it was found to contain a Cr-rich sigma phase as a secondary phase [18,25].”
- Passivation of a corrosion resistant high entropy alloy in non-oxidizing sulfate solutions (2019, unknown): “Enhanced properties have been reported for HEAs: high hardness [8,9,11,16,18,19], superior wear resistance [5], high-temperature strength [20], structural stability [8–10], and proposed excellent corrosion and oxidation resistance [8,9,16,18,20–23].”
- Corrosion of high entropy alloys (2017, methodology): “5a.(18) Although these CCAs have a relatively similar composition, they exhibit significant differences in terms of their electrochemical response.”