| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
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| Presentation Title |
Influence of Manufacturing Processes on the Microstructure and Properties of High-Entropy Alloys for Advanced Applications |
| Author(s) |
Paula Alvaredo Olmos, R Carbajales, D Guerrero, Jose Manuel Torralba, Monica Campos |
| On-Site Speaker (Planned) |
Paula Alvaredo Olmos |
| Abstract Scope |
One of the main characteristics that have made high-entropy alloys (HEAs) is their ability to extend the compositional ranges and tailor the microstructure through compositional modification, offering a new perspective in the design of metallic alloys. However, as the materials paradigm suggests, the final properties of these alloys are not solely dependent on composition; the processing route also plays a crucial role.
In this work, we study how different manufacturing processes can influence the properties of HEAs. We specifically investigate how the microstructural control afforded by Powder Metallurgy can modulate the final properties. This includes examining the microstructural modification of a eutectic composition HEA and its impact on mechanical properties. Additionally, the study explores the influence of these modifications on key properties for advanced applications, such as corrosion resistance in molten salts for solar thermal power plants and hydrogen diffusion and its impact on mechanical behavior.
The study of microstructural modification has been conducted using rapid sintering techniques (Spark Plasma Sintering, SPS) and ultra-rapid sintering (Electric Resistance Sintering, ERS). The corrosion behavior of different microstructures in molten salts was monitored using polarization and electrochemical impedance spectroscopy (EIS), while hydrogen permeability and mechanical behavior were evaluated through tensile tests. |
| Proceedings Inclusion? |
Planned: |