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Alloying and Processing Effects on the Aqueous Corrosion Behavior of High-Entropy Alloys

Tang, Zhi; Huang, Lu; He, Wei; Liaw, Peter

Abstract:

The effects of metallurgical factors on the aqueous corrosion behavior of high-entropy alloys (HEAs) are reviewed in this article. Alloying (e.g., Al and Cu) and processing (e.g., heat treatments) effects on the aqueous corrosion behavior of HEAs, including passive film formation, galvanic corrosion, and pitting corrosion, are discussed in detail. Corrosion rates of HEAs are calculated using electrochemical measurements and the weight-loss method. Available experimental corrosion data of HEAs in two common solutions [sulfuric acid (0.5 M H$_{2}$SO$_{4}$) and salt water (3.5 weight percent, wt.%, NaCl)], such as the corrosion potential (E$_{corr}$), corrosion current density (i$_{corr}$), pitting potential (E$_{pit}$), and passive region (ΔE), are summarized and compared with conventional corrosion-resistant alloys. Possible directions of future work on the corrosion behavior of HEAs are suggested.


Verlagsausgabe §
DOI: 10.5445/IR/1000136598
Veröffentlicht am 23.08.2021
Originalveröffentlichung
DOI: 10.3390/e16020895
Scopus
Zitationen: 167
Dimensions
Zitationen: 162
Cover der Publikation
Zugehörige Institution(en) am KIT Universität Karlsruhe (TH) – Interfakultative Einrichtungen (Interfakultative Einrichtungen)
Karlsruhe School of Optics & Photonics (KSOP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2014
Sprache Englisch
Identifikator ISSN: 1099-4300
KITopen-ID: 1000136598
Erschienen in Entropy
Verlag MDPI
Band 16
Heft 2
Seiten 895–911
Vorab online veröffentlicht am 14.02.2014
Schlagwörter high-entropy alloy; aqueous corrosion; sulfuric acid; salt water; alloying; heat treatment
Nachgewiesen in Dimensions
Web of Science
Scopus
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