| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
High Speed Rotational Diamond Anvil Cell for in situ Analysis of Shear Deformation Induced Microstructural Evolution and Phase Transformation: A Multimodal Experimental and Computational study |
| Author(s) |
Arun Devaraj, Tingkun Liu, changyong Park, Stanislav Sinogeikin, Matthew Olszta, Bharat Gwalani, lei li, wenkai Fu, Qin Pang, Nanjung Chen, Ayoub Soulami, Yulan Li, shenyang Hu, Peter Sushko, Suveen Mathaudhu, Cynthia Powell |
| On-Site Speaker (Planned) |
Arun Devaraj |
| Abstract Scope |
Development of scalable shear deformation-based solid phase processing methods critically depends on obtaining better predictive understanding of the fundamental atomic scale mechanisms of mass and energy transfer in materials under shear deformation. Hence to improve the predictive mechanistic understanding of dynamic microstructural evolution of materials during shear deformation, we developed a first of its kind high-speed rotational diamond anvil cell (HSRDAC) and implemented it at the Advanced Photon Source synchrotron beamline. HSRDAC provided time resolved synchrotron-based XRD results of lattice strain evolution and spatial variation of shear deformation induced defect density, and alloying in Cu-Ni binary system. The in situ synchrotron XRD results were then correlated with multimodal ex situ characterization and multiscale computational simulations to provide a comprehensive description of morphology, structure, composition and defects evolution at multiple length scales. Ultimately, this study provides new insights on how interfacial mass transfer can be accelerated in materials under shear deformation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Modeling and Simulation, Shaping and Forming |