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Meeting Materials Science & Technology 2020
Symposium Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales II
Presentation Title Regulating Elastic and Plastic Deformations by Microstructure Design and Coupling between Deformation and Phase Transformation - An Integrated Modeling and Experimental Study
Author(s) Qianglong Liang, Yufeng Zheng, Yipeng Gao, Tianlong Zhang, Dong Wang, Michael J. Mills, Hamish L. Fraser, Yunzhi Wang
On-Site Speaker (Planned) Yunzhi Wang
Abstract Scope 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.
Proceedings Inclusion? Planned: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Applications of Computational Polarized Light Microscopy for Large Area Orientation Determination of alpha-Titanium
Bridging Computational Modeling and In Situ Experiment to Decipher Microscopic Deformation Mechanics
Characterization of 3-D Slip Fields in Deforming Polycrystals
Combining Multi-scale Modeling and Three-Dimensional Diffraction to Investigate Chemical and Displacement Ordering in Metallic Alloys
Design of an Austenitic Steel Weldment System Using ICME
Development of a Reactive Forcefield to Model Cu-Ni Alloy Oxidation and Surface Segregation in Thermal Conditions
Diffraction Elastic Constants from Electron Backscatter Diffraction Data and Finite Element Models
Directionally-anisotropic Mobility of Faceted Boundaries Explained through Interfacial Dislocation Mechanisms
ECCI Image Simulations for Arbitrary Defect Displacement Fields
Electron Backscatter Diffraction Pattern Simulation for Interaction Volume Containing Lattice Defects
Experimental Capabilities at High Pressure Collaborative Access Team (HPCAT) for In-situ and In-operando Characterization of Pressure/Stress Induced Microstructural Changes in Materials
Integrating Materials Models and Dynamical Electron Diffraction Simulations for Dislocation Analysis using STEM-Defect Contrast Imaging
Investigating the Microstructural Origins of Hydrogen Effects on Deformation and Fracture
Novel Remapping Method for HR-EBSD Based on Computer Vision Algorithm
On the Characterization of Twin-twin Interactions in Mg and Its Alloys
Predicting the Stress Strain Behavior of Nickel Single Crystal Through an Integrated First-principles Calculation and Crystal Plasticity Finite Element Modeling Approach
Regulating Elastic and Plastic Deformations by Microstructure Design and Coupling between Deformation and Phase Transformation - An Integrated Modeling and Experimental Study
Strong strain hardening in ultrafast melt-quenched nanocrystalline Cu: the role of fivefold twins
Synchrotron X-ray Tools for Multiscale Studies of Microstructure Evolution
Texture Evolution of Individual Layers during Accumulative Roll Bonding of Fe-Cu Metallic Laminates
Twinning Nucleation in Hexagonal Close-packed Crystals
Ultra-high strength and plasticity mediated by partial dislocations and defect networks

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