About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
|
Symposium
|
2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
ON DEMAND: On the Corrosion and Passivation of Multi-principal Element Alloys (MPEAs) |
Author(s) |
Nick Birbilis, Sanjay Choudhary |
On-Site Speaker (Planned) |
Nick Birbilis |
Abstract Scope |
Several multi-principal element alloys (MPEAs) are reported to exhibit excellent corrosion and pitting resistance. Owing to a scarcity of detailed physical analysis, mechanistic aspects of the passivity MPEAs have not been adequately described to date. The complex thermo-kinetic interfacial processes that govern the dissolution behavior of MPEAs are challenging to ascertain; and herein an in-situ atomic emission spectroelectrochemistry (AESEC) method was used to investigate dissolution and passivation behavior. Along with AESEC analysis, the formation and evolution of the passive films were studied using X-ray photoelectron spectroscopy (XPS), Mott-Schottky analysis and equilibrium thermodynamics. The work herein was approached in a manner to allow a visual representation of what such passive surfaces. |
Proceedings Inclusion? |
Undecided |