About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
Gradient Shape Memory Alloys: An Exploration of Pseudo and Thermo-elastic Response |
Author(s) |
Daniel Hong, Xuesong Gao, Peter Anderson |
On-Site Speaker (Planned) |
Daniel Hong |
Abstract Scope |
NiTi Shape memory alloys (SMA) are known for their characteristic shape memory and pseudoelastic properties, with applications that range from solid state actuators to medical stents. These applications could be expanded through the development of SMAs in which the phase transformation extends over ranges of stress and/or temperature not possible with a single SMA. Such “extended-response” SMAs can be realized, in principle, through additive manufacturing to attain spatial gradients in chemistry/texture or instead through ion implantation to achieve spatial gradients in nanometer-scale amorphous clusters. This work reports on finite element simulations to study SMAs comprised of a variety of constituent SMA responses. Cases of novel SMA response are identified and rationalized in terms of the stress redistribution and interaction within gradient SMAs. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Phase Transformations, |