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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Nanostructured Materials in Extreme Environments II
Presentation Title Understanding and Characterization of the Dynamic Deformation Behavior of Multiphase Cu-Fe Alloy Microstructures Using Molecular Dynamics and Virtual Diffraction
Author(s) Phillip Tsurkan, Marco Echeverria, Avinash Dongare
On-Site Speaker (Planned) Phillip Tsurkan
Abstract Scope Advanced manufacturing techniques enable the creation of complex metallic microstructures containing nanoscale precipitates of equilibrium and metastable phases. Understanding plasticity mechanisms and phase stability is essential to unravel the complexity of the deformation response. In-situ x-ray diffraction (XRD) has been employed to analyze the microstructure through changes in diffraction patterns. However, the role of interfaces and phase metastability on the deformation mechanisms remains unclear. This study uses molecular dynamics simulations to investigate the deformation mechanisms in multiphase Cu-Fe microstructures with Cu clusters in a BCC Fe matrix and Fe clusters in an FCC Cu matrix under shock loading. Virtual XRD is used to correlate microstructure changes to diffraction patterns. This talk will present our approach to understanding the effect of nanoscale precipitates on the deformation mechanisms and diffraction patterns of multiphase Cu-Fe microstructures. This study is supported by the Department of Energy, National Nuclear Security Administration under Award No. DE-NA0003857.
Proceedings Inclusion? Planned:
Keywords Computational Materials Science & Engineering, Mechanical Properties, Phase Transformations


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