About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Advances in Multi-Principal Element Alloys III: Mechanical Behavior
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Presentation Title |
Characterizing Deformation Behavior in a BCC+B2 Fe75Al15Ni10 Alloy to Better Understand Deformation in BCC+B2 Multi-Phase Refractory Complex Concentrated Alloys |
Author(s) |
Bryan Crossman, Jean-Philippe Couzinie, Michael Mills, Maryam Ghazisaeidi |
On-Site Speaker (Planned) |
Bryan Crossman |
Abstract Scope |
The high temperature properties of multi-phase refractory complex concentrated alloys (RCCAs) have made them a potential solution to the higher operating temperatures required to increase efficiency in energy and transportation applications. Multi-phase RCCAs, commonly BCC+B2, have limited room temperature ductility, high temperature phase instability, and limited work characterizing their deformation mechanisms. This works aims to investigate RCCAs deformation mechanisms, specifically slip transmission, via a model BCC+B2 Fe75Al15Ni10 alloy using high resolution HAADF and diffraction contrast STEM. Fe75Al15Ni10 is easier and cheaper to produce than most RCCAs and simplifies atomistic simulations which can be compared to experimental results to gain further insights into the active deformation mechanisms. Previous work done on this alloy showed coherent NiAl rich B2 precipitates in a FeAl rich BCC matrix with potentially coupled a/2 <111> dislocations. The current work aims to explore the dislocation interactions and gain further insight into RCCA deformation mechanisms. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Characterization, |