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Corrosion and passivation of multi-principal element alloys in aqueous solutions
1  Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA, 22904, USA


Multi-principal element alloys (MPEAs) offer the possibility of considerable degrees of freedom in the choice of alloying elements to produce either single or multi-phase solid solution alloys. A wide range of material properties, sometimes unique, have been observed based on the alloying elements selected and microstructures developed. However, a structure, composition, and processing paradigm governing the corrosion properties of MPEAs has not yet emerged. The quest for superior corrosion properties requires understanding of the fate of each element during corrosion and its subsequent functions. These issues are discussed with the goal of accelerating the understanding of the corrosion behavior in this class of materials.

Keywords: corrosion; multi-principal element alloys