About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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Advanced Characterization Techniques for Quantifying and Modeling Deformation
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Presentation Title |
TRIP/TWIP of Structural Metallic Alloys for Performance in Extreme Environments |
Author(s) |
Amy J. Clarke, Benjamin Ellyson, John Copley, Francisco Coury, Jonah Klemm-Toole, Yaofeng Guo, Jinling Gao, Chandler Gus Becker, Brian Milligan, Christopher Finfrock, Chloe Johnson, Kester Clarke, Wayne Chen, Niranjan Parab, Tao Sun, Kamel Fezzaa |
On-Site Speaker (Planned) |
Amy J. Clarke |
Abstract Scope |
TRansformation Induced Plasticity (TRIP) and TWinning Induced Plasticity (TWIP) are deformation mechanisms commonly employed in the design of Advanced High Strength Steel (AHSS) microstructures that exhibit desirable combinations of strength and ductility for crash management in automotive applications. Yet, these deformation mechanisms are underutilized and less understood in lightweight metallic alloys such as Ti, important for aerospace, defense, and biomedical applications. Here we use in-situ imaging and diffraction at the Advanced Photon Source at Argonne National Laboratory to study TRIP/TWIP behavior in metastable beta-Ti and multi-principal element alloys (MPEAs) during dynamic loading in tension and compression at strain rates up to approximately 103 s-1. Quasi-static and intermediate strain-rate testing and detailed microstructural characterization are also performed to support the development of experimentally-validated modeling. Fundamental understanding of TRIP/TWIP will enable novel alloying and processing strategies to create microstructures and properties by design for performance (e.g. blast resistance) in extreme environments. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |