Effect of Heat Treatment on Microstructure and Aqueous Corrosion Properties of AlCoCrNiFe High Entropy Alloy
This study examines the effects of heat treatment on corrosion behavior of equiatomic AlCoCrNiFe high-entropy alloy within a solution treatment temperature range of 800–1100 °C. Experimental observations on phase formation were compared with thermodynamic predictions. The microstructure, mechanical properties, and aqueous corrosion behavior of the as-deposited alloy were analyzed and contrasted with heat-treated samples. The results showed a decline in the corrosion resistance of the AlCoCrNiFe after heat treatment, which was attributed to chemical segregation and Cr depletion in the microstructure matrix. Additionally, post-corrosion analysis revealed a reduced volume fraction of protective oxides in the heat-treated samples.
Authors
- Hatim Raji (ORCID: https://orcid.org/0009-0003-2081-4677)
- Soheil Saedi (ORCID: https://orcid.org/0000-0001-8665-5259)
- Hamdy Ibrahim (ORCID: https://orcid.org/0000-0002-4198-7441)
- Ahmed Korra
Institutions
- Florida Institute of Technology (US)
- University of Tennessee at Chattanooga (US)
Publication Details
- Journal
- Corrosion and Materials Degradation
- Published
- 2024-11-07
- DOI
- https://doi.org/10.3390/cmd5040025
- Citations
- 1
- Primary Topic
- High Entropy Alloys Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.21