|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Environmental Degradation of Multiple Principle Element Alloys
||John R Scully, Angela Y. Gerard, Bi-Cheng Zhou, Prasanna V Balachandran, Gerald S Frankel, Jenifer Locke, Pin Lu, James Saal
|On-Site Speaker (Planned)
||John R Scully
Multiple principle element alloys (MPEAs) are emerging materials that have recently attracted great interest due to their many degrees of freedom in alloy design and synthesis leading to potentially attractive properties. Many unique or even heretofore unobtainable properties have been reported including resistance to various forms of degradation in harsh environments. These include promising aqueous corrosion behavior, improved oxidation resistance in high and intermediate temperature atmospheres, irradiation resistance as well as possible resistance to environmental assisted cracking. Mechanisms by which MPEAs afford excellent resistance to each of these forms of degradation are discussed. One commonality during pitting and environmental assisted cracking, which both involve film rupture repassivation events, is the rapid formation of unique protective oxides. Selected protective oxide characteristics and attributes are discussed.