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Open AccessFeature PaperReview

Corrosion, Erosion and Wear Behavior of Complex Concentrated Alloys: A Review

1
Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA
2
Surface Science and Tribology Lab Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Uttar Pradesh 201314, India
*
Author to whom correspondence should be addressed.
Metals 2018, 8(8), 603; https://doi.org/10.3390/met8080603
Received: 18 June 2018 / Revised: 18 July 2018 / Accepted: 24 July 2018 / Published: 3 August 2018
There has been tremendous interest in recent years in a new class of multi-component metallic alloys that are referred to as high entropy alloys, or more generally, as complex concentrated alloys. These multi-principal element alloys represent a new paradigm in structural material design, where numerous desirable attributes are achieved simultaneously from multiple elements in equimolar (or near equimolar) proportions. While there are several review articles on alloy development, microstructure, mechanical behavior, and other bulk properties of these alloys, then there is a pressing need for an overview that is focused on their surface properties and surface degradation mechanisms. In this paper, we present a comprehensive view on corrosion, erosion and wear behavior of complex concentrated alloys. The effect of alloying elements, microstructure, and processing methods on the surface degradation behavior are analyzed and discussed in detail. We identify critical knowledge gaps in individual reports and highlight the underlying mechanisms and synergy between the different degradation routes. View Full-Text
Keywords: corrosion; surface degradation; wear; high entropy alloys; complex concentrated alloys; potentiodynamic polarization; erosion-corrosion; slurry-erosion; oxidation wear; highly wear resistant coatings corrosion; surface degradation; wear; high entropy alloys; complex concentrated alloys; potentiodynamic polarization; erosion-corrosion; slurry-erosion; oxidation wear; highly wear resistant coatings
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MDPI and ACS Style

Ayyagari, A.; Hasannaeimi, V.; Grewal, H.S.; Arora, H.; Mukherjee, S. Corrosion, Erosion and Wear Behavior of Complex Concentrated Alloys: A Review. Metals 2018, 8, 603.

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