About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond II
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Presentation Title |
Development of Low-cost High Entropy Alloys through Alloy Mixing |
Author(s) |
Karthikeyan Hariharan, Katakam Sivaprasad |
On-Site Speaker (Planned) |
Karthikeyan Hariharan |
Abstract Scope |
High entropy alloys (HEAs), have kindled interest among researchers for the past 15 years due to their unusually superior structural and functional properties. However, their application is limited by the fabrication cost as they are typically fabricated by vacuum melting methods of pure elements or by mechanical alloying using pure elemental powders. To overcome this issue, a new low-cost fabrication called “Alloy mixing” is proposed. In this method, it is proposed to melt different commercially available alloys to achieve HEA composition; this method would also permit the usage of scrap metals. A near-equiatomic HEA with a composition CrCuFeMnNi is fabricated using this new method.Our analysis shows that more than 40% reduction in cost is achieved while maintaining the same microstructure (verified through XRD and SEM) as that of the alloy fabricated by conventional methods;the cost can be further reduced with the usage of non-equiatomic HEAs. |