| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
Exploring the Nature of Passivation Film in Chloride Salt Solution Under Tensile Loading in a Non-equiatomic Metastable High Entropy Alloy |
| Author(s) |
Pranshul Varshney, Nilesh Kumar |
| On-Site Speaker (Planned) |
Nilesh Kumar |
| Abstract Scope |
The simultaneous presence of a tensile load, susceptible material, and corrosive environment leads to stress corrosion cracking (SCC). The nature of passivation film plays a vital role in the degradation of materials by SCC. This work focused on exploring the nature of passivation film evolved during SCC in a metastable high entropy alloy. It involved subjecting dog-bone-shaped tensile test specimens to a neutral salt solution at room temperature for 24 h under to two different loading conditions: (1) a constant uniaxial tensile load and (2) no load. The nature of the passivation film developed under both conditions was examined using electrochemical impedance spectroscopy (EIS) and X-ray photoelectron spectroscopy (XPS). Both EIS and XPS results revealed that the properties and chemical make-up of passivation film evolved under SCC conditions differed from that developed under no load conditions. This work clarifies the role of tensile loads in the evolution of passivation films. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, High-Entropy Alloys, Characterization |