About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
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Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond III
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Presentation Title |
Production, Characterization, Mechanical Properties and Corrosion Resistance of CrCoNi-based Multi-principal Element Alloys |
Author(s) |
Francisco Gil Coury, Diego de A. Santana, Gustavo Bertoli, David D. S. Silva, Maria Eduarda Pablos, Caroline B. Stoco, Guilherme Y. Koga, Nicholas Birbilis, Joćo Pedro Oliveira, Michael J. Kaufman, Amy J. Clarke |
On-Site Speaker (Planned) |
Francisco Gil Coury |
Abstract Scope |
Among the multi-principal element alloys (MPEA) developed to date, CrCoNi alloys have attracted a great deal of attention due to their good mechanical properties, especially the good combination of strength and toughness that some compositions can display. In this presentation, special focus will be given on three alloys non-equiatomic alloys derived from this system: Cr40Co40Ni20, Cr40Ni30Ni30 and Cr29.7Co29.7Ni35.4Al4.0Ti1.2. An in-depth characterization of these compositions will be shown together with their mechanical and electrochemical behaviors after different processing conditions. It will be shown the types of interfaces that can exist on the annealed and deformed alloys, the types of precipitates that can form and effective ways of characterizing them by electron microscopy. The deformation mechanisms, intrinsic mechanical properties and corrosion resistance will be discussed to critically evaluate the potential of these alloys in comparison to more conventional alloys. |