Passive film composition and stability of CoCrFeNi and CoCrFeNiAl high entropy alloys in chloride solution

In this work, CoCrFeNi and CoCrFeNiAl high entropy alloys (HEAs) were produced by arc melting. The aim was to investigate the correlation of the electrochemical behavior with microstructural features and chemical compositions of the surfaces during the first hours of immersion in 3.5 wt% NaCl soluti...

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Veröffentlicht in:	Materials chemistry and physics 2021-07, Vol.267, p.124582, Article 124582
Hauptverfasser:	Nascimento, Camila Boldrini, Donatus, Uyime, Ríos, Carlos Triveño, Antunes, Renato Altobelli
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloys Aluminum oxide Charge transfer Chemical composition CoCrFeNi Corrosion resistance Corrosion resistant alloys Dendritic structure Diffraction patterns EIS Electric arc melting Electrochemical analysis Electrochemical impedance spectroscopy Entropy of solution High entropy alloys Passive film Photoelectrons Room temperature Submerging XPS
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