About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
High Entropy Alloys VIII
|
Presentation Title |
Origins of Excellent Passivation in Multiple Principle Element Alloys |
Author(s) |
John R Scully, Angela Y. Gerard, Carol F Glover, Kang Wang, Bi-Cheng Zhou, Prasanna V Balachandran, Gerald S Frankel, Pin Lu, James E Saal, Daniel Schreiber, Joseph Poon, Sean R Agnew |
On-Site Speaker (Planned) |
John R Scully |
Abstract Scope |
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 excellent 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. Focusing on passivation regulated by the formation and growth of a thin oxide film, a rich variety of possible protective oxide characteristics and attributes are discussed. Both thermodynamic and kinetic factors are considered to develop a better understanding of the key aspects governing the protective nature of these oxide films. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |