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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 10/2019

30.09.2019

Aqueous Corrosion Behavior of Cast CoCrFeMnNi Alloy

verfasst von: S. Pathak, N. Kumar, R. S. Mishra, P. S. De

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 10/2019

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Abstract

CoCrFeMnNi high-entropy alloy demonstrates good mechanical properties and can be further strengthened by thermomechanical processes. A sample alloy prepared by vacuum casting in a graphite mold was further investigated for its corrosion resistance. One-millimeter thin strips of cast alloy were used to investigate its corrosion behavior at room temperature. Linear potentiodynamic tests of the alloy in sodium chloride solution confirmed uniform corrosion property comparable to stainless steel AISI 304. However, a positive cyclic hysteresis loop indicated susceptibility to pitting corrosion. In sodium hydroxide solution, metastable pit formation was observed, while sulfuric acid solution passivated the alloy. In both cases, the alloy did not show any spontaneous pitting tendency.
Vorheriger Artikel Performance of Composite Insulators Used for Electric Transmission under Extreme Climatic Conditions
Nächster Artikel Fatigue Failure Characteristics of Single-Crystal Fe-3%Al Alloy

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Metadaten
Titel
Aqueous Corrosion Behavior of Cast CoCrFeMnNi Alloy
verfasst von
S. Pathak
N. Kumar
R. S. Mishra
P. S. De
Publikationsdatum
30.09.2019
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 10/2019
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-019-04329-z

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