About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Environmental Degradation of Multiple Principal Component Materials
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Presentation Title |
Localized Corrosion Resistance of Ni-Cr-Co-Fe-Mo MPE Alloys in Aqueous and Methanolic Environments |
Author(s) |
Angeire Huggins Gonzalez, Narasi Sridhar, Ramgopal Thodla |
On-Site Speaker (Planned) |
Narasi Sridhar |
Abstract Scope |
The localized corrosion resistance of three Ni-Cr-Co-Fe-Mo High Entropy Alloys (HEA’s) with Pitting Resistance Equivalence Numbers (PREN) ranging from 42 to 55 were evaluated in LiCl environments in water and methanol as solvents. Three were compared to a conventional Ni-base alloy (alloy 625) with similar PREN. The literature data on the localized corrosion resistance of a commercially available Multi-Principal Element Alloy (MPEA), MP-35N (UNS R30035), is also compared. The localized corrosion resistance of the MPEA's trended with PREN along with the conventional alloys. The localized corrosion was more severe in methanolic solutions than in aqueous solutions. The localized corrosion behavior of the MPEA's are discussed in terms of the alloying effect on the electrochemical response and local chemistry. |
Proceedings Inclusion? |
Planned: |
Keywords |
Environmental Effects, High-Entropy Alloys, Modeling and Simulation |