About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
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Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond II
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Presentation Title |
Insights into the Deformation Processes of a Refractory Complex Concentrated Alloy Exhibiting B2-type Order |
Author(s) |
Jean-Philippe Couzinie, Milan Heczko, Veronika Mazanova, Oleg Senkov, Rajarshi Banerjee, Maryam Ghazisaeidi, Michael Mills |
On-Site Speaker (Planned) |
Michael Mills |
Abstract Scope |
Refractory complex concentrated alloys (RCCAs) are currently among the most studied materials in the high-entropy field as they retain high mechanical properties up to 1000°C. The ordered B2 phase plays a key role in some of RCCAs behavior, and promising compositions are found in systems for which it is present, whether the B2 phase is continuous or forms coherent precipitates in the matrix. As they are currently seen as interesting candidates for future structural applications, some basic challenges have to be addressed. The understanding of the deformation mechanisms and of the influence of order on those mechanisms is one of them. In that respect, the present talk aims at giving some insights into the deformation processes of the Al0.5NbTa0.8Ti1.5V0.2Zr material after compressive testing at room temperature and 600°C. Detailed analysis of the defects governing the plastic deformation will be reported and discussed in light of the transmission electron microscopy observations. |