About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
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Symposium
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2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
Microstructure and 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) |
Milan Heczko |
Abstract Scope |
Refractory complex concentrated alloys (RCCAs) are currently among the most promising structural 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. They are currently seen as interesting candidates for future structural applications, but some basic challenges have still to be addressed. The understanding of the deformation mechanisms and of the influence of order on those mechanisms is a crucial one. Thus, 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. |
Proceedings Inclusion? |
Undecided |