About this Abstract |
Meeting |
MS&T23: Materials Science & Technology
|
Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond IV
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Presentation Title |
Nanocrystalline High-entropy Alloys: Synthesis, Mechanical Properties, and Thermal Stability |
Author(s) |
Yu Zou |
On-Site Speaker (Planned) |
Yu Zou |
Abstract Scope |
In the presentation, I will talk a few strategies for the fabrication of nanostructured HEAs. We report the first comprehensive study on the synthesis and characterization of electrodeposited HEAs made from aqueous electrolytes. High-quality alloys of NiFeCo-W, NiFeCo-Mo, and NiFeCo-MoW were deposited onto Cu substrates at thicknesses in the range 31–44 µm. Those HEAs exhibit high yield strengths and enhanced thermal stability. Moreover, I also demonstrate that such nanostructured HEA films (refractory HEAs) made by co-sputtering show substantially enhanced stability for high-temperature, long-duration conditions. Nanostructured HEAs combining these properties represent a new class of materials in small-dimension devices potentially for high-stress and high-temperature applications. |