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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Advanced Characterization Techniques for Quantifying and Modeling Deformation
Presentation Title Tracking Subgrains during Strain Path Changes by High Resolution Reciprocal Space Mapping
Author(s) Christian Wejdemann, Henning Friis Poulsen, Ulrich Lienert,
On-Site Speaker (Planned)
Abstract Scope During a strain path change, an established deformation structures becomes alien with respect to the new deformation conditions and replaced by a deformation structure conform to them. Insight in the structural reorganization in polycrystalline copper is gained by monitoring individual subgrains with high energy synchrotron radiation. With high resolution reciprocal space mapping, a large number of individual subgrains can be resolved and their fate, their individual orientation and their elastic stresses tracked after the strain path change. Two different regimes were identified during the transient mechanical behavior: a microplastic regime, where number and orientation of the subgrains change only slightly while their elastic stresses are significantly altered, followed by a regime of fully developed plasticity where elastic stresses of individual subgrains remain almost unaltered, while abundant orientation changes and removal of existing subgrains occur. A peculiar size effect is also perceived with the largest subgrains experiencing the highest elastic stresses.
Proceedings Inclusion? Planned: EPD Congress Volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Analysis of Dislocations near Grain Boundary Using Nonlocal Plasticity Model
A Study of Grain-level Deformation and Residual Stresses in Ti-7Al under Combined Bending and Tension
A Study of Local Rate Sensitivity in Dual-phase Ti Alloys by Micropillar Compression and CPFE Modelling
Application of a Spectral Method Framework to Interrogate the Influences of Experimental Uncertainty on Crystal Plasticity
Automated Correlative Tomography of an Aluminum 7075 Alloy Spanning Length Scales and Modalities
BB-10: Microstructurally-Short Crack Growth Driving Force Identification: Combining DCT, PCT, Crystal Plasticity Simulations and Machine Learning Technique
BB-12: Optimized Mechanical Properties of Thermomechanically-processed HSLA-100 Steel Plates
BB-13: The Effect of Temperature and Thermomechanical Processes on the Tensile Deformation Behavior of Beta Titanium Alloys
BB-14: The Role of Texturing and Recrystallization during Grain Boundary Engineering of Advanced Ni-base Superalloys
BB-15: Using EBSD to Characterized Deformation under Scratches in Inconel 690 Heat Exchanger Tube
BB-1: 3D Crystal Plasticity based Modeling of Deformation Behavior in Commercial Purity Titanium
BB-2: A First Prediction of Dislocation Patterns in Single Crystals Using Continuum Dislocation Dynamics Theory
BB-3: Delayed Cracking in Deep-drawn Duplex Stainless Steels: The Role of Plastic Anisotropy, Transformation Kinetics, and Stress Partitioning
BB-4: Efficient Modeling of Continuum Deformation Variables in Atomistic Simulations
BB-5: Effect of Grain Boundary on the Surface Roughness in Single-point Diamond Turning Annealed Copper
BB-6: Experimental Research and Modeling of the Material Behavior in the Creep Feed Grinding
BB-7: In Situ Characterization of Nanoscale Precipitate Nucleation and Growth in Aluminum Alloys Using Transmission X-Ray Microscopy (TXM)
BB-8: Influence of Dominant Deformation Mechanism, Strain, and Temperature on the Recrystallization Kinetics of AZ31B Mg Alloy
Characterization of Atomistic Structures by Simulated Kikuchi Diffraction
Characterization of Dislocation and Twinning Activity by EBSD-assisted Trace Analysis: Application to Unravel Grain Size Effects on the Plasticity of Pure Mg Polycrystals
Computational and Experimental Comparison of Mechanical Deformation and Microstructure Evolution of Additively Manufactured Materials
Continuous Yielding Investigated by Concurrent Mapping of Microstructure, Micro-strain and Micro-stress Evolution
Crystal Plasticity and HR-DIC Studies of Slip and Strain Localisation in Single and Polycrystal Ni Alloys under Cyclic Bending
Dark Field X-Ray Microscopy for Studies of Very Low Angle Boundaries
Designing High Fracture Toughness Nanocomposites via In Situ TEM Approach
Effects of Stretch Forming on Microstructure and Corrosion of Al-Cu-Li Alloys
Evolution of Void Shape Anisotropy in Deformed bcc Steels
Experimental Micromechanics – Getting the Most out of High Resolution EBSD and DIC
Grain Boundary Engineering of a Low Stacking Fault Energy Ni-base Superalloy
High-resolution Plastic Strain Mapping during Tensile Deformation of a Magnesium Alloy
High-temperature In-SEM Mapping of Early Damage Accumulation across Length Scales in CMCs
Hydrogen-Enhanced ‘Free-Volume’ Effects during Deformation of Ni Alloys
In-situ 3-D Characterization and Direct Micromechanical Modelling for Identification of Microstructural Effects on Ductile Damage in 2-phase Polycrystals
In-situ Investigation of Rate Dependent Material Properties under Non-ambient Conditions: Challenges, Limitations & Insights
In Situ Deformation Study of Nanotwinned and Single Crystal Cu Implanted with He Using a Novel Implantation Method
In Situ TEM Characterization on Size-related Dislocation Behavior in Mg and Phase Transformation in Ti
Interrupted Quasi-static and Dynamic Tensile Experiments of Fully Annealed 301 Stainless Steel
Intragranular Orientation Spread Induced by Grain Interaction
Investigation of Microstructural Stability of CuNb Composites under High-pressure Torsion (HPT)
Investigation of the Temperature Dependence of Mechanical Deformation in α-uranium
Mechanical properties and Characterization of Microstructural Gradients with Various Gamma Prime Distributions in Low Solvus High Refractory (LSHR) Nickel Base Superalloy
Multiaxial Strain Path Changes in Grain Boundary Dominated Materials: In-situ Observations during XRD and SEM
Multiscale Modeling of IN718 Superalloy Based on Micropillar Compression and Computational Homogenization
Neutron Diffraction Residual Stress Measurements in Al-Cu Cold Spray Deposited Coatings
Physical Analysis of High Resolution Single Grain and Subgrain Diffraction Profiles
Plasticity Mechanisms in Hafnium Nitride at Room and Elevated Temperature
Post Processing Effects on EBSD based Dislocation Density Measurements
Probing Grain Boundary Mechanics in alpha-titanium Using Nanoindentation and Boundary-sensitive Crystal Plasticity Modeling
Quantification of Twinning for Sub-Grid Mesoscale Modeling
Quantifying Grain-Scale Deformation for Direct Comparison to Crystal Plasticity Predictions
Quantifying the Local and Global Misorientation Distributions as a Function of Crystallographic Orientation and Level of Plastic Strain in Polycrystalline Materials by Utilizing EBSD Mapping
Quantifying the Response of Polycrystalline Materials at the Mesoscale: Measurements, Modeling and Data Mining
Quantitative Analysis of Dislocation Densities from Electron Backscatter Diffraction and Precession Electron Diffraction Data
Quantitative Analysis of Local Stress Concentration in Nanotwinned Metal during Plastic Deformation
Revealing Deformation Mechanisms in Superalloys Using STEM-Based Imaging and Spectroscopy
Secondary Deformation Density of a TWIP-TRIP Steel Strained at High Rates
Slip Band Development in Aluminium: Measurements and CPFEM Predictions
Slip Localisation in Ti Alloys Studied by High-resolution Digital Image Correlation
Strength Distribution in a Spalled Material and Its Dependence on Local Microstructure
Structural Analysis of In-field Loaded Railway Steel
Tensile Deformation of CP Titanium Using In-situ EBSD Analysis and Crystal Plasticity Simulations
The Effect of Texture on Multi-scale Strain Patterns in Magnesium AZ31 Investigated by In Situ Microscopic Image Correlation
Three Dimensional Orientation Characterization of Metals Tested in Tension
Tracking Subgrains during Strain Path Changes by High Resolution Reciprocal Space Mapping
Unexpected Stress Induced Martensite Formation in Ultra-strong Pearlitic Steel
Unique Deformation Mechanisms in Mg-Y from In Situ Mechanical Test
Using Conventional EBSD for Dislocation Structure Quantification
Using FFT Simulations to Understand EBSD Twinning Characterization
Using Synchrotron Radiation to Characterize Deformation
Which Aggregate Complexity is Required in Full-field Polycrystalline Computations Depending on the Scale of Interest?

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