|About this Abstract
||Materials Science & Technology 2020
||Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales II
||Regulating Elastic and Plastic Deformations by Microstructure Design and Coupling between Deformation and Phase Transformation - An Integrated Modeling and Experimental Study
||Qianglong Liang, Yufeng Zheng, Yipeng Gao, Tianlong Zhang, Dong Wang, Michael J. Mills, Hamish L. Fraser, Yunzhi Wang
|On-Site Speaker (Planned)
In crystalline solids, shear deformations such as dislocation glide, mechanical twinning, and martensitic transformations share key common features such as autocatalysis by long-range elastic interactions and strain avalanche. In order to achieve the desired stress-strain behaviors for a given application, microstructures need to be tailored judiciously to have precisely controlled strain release during both elastic and plastic deformations. In this presentation, using a combination of theoretical modeling, computer simulation, and experimental characterization, we demonstrate how to utilize intrinsic and dynamic coupling between deformation and structural phase transformation to achieve unprecedented stress-strain behaviors in both structural and functional materials. This work is supported by DOE/BES program and NSF/DMREF program.