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About this Symposium
Meeting Materials Science & Technology 2016
Symposium Heterogeneity during Plastic Deformation – Synergy between Experimental Investigation and Simulation
Sponsorship
Organizer(s) Stephen Niezgoda, The Ohio State University
David Fullwood, Brigham Young University
Scope Polycrystalline materials, primarily metal alloys, are widely used in structural applications due to their combination of high-strength with the ability to absorb energy and redistribute load through plastic deformation. Defects in polycrystalline materials, including dislocations and internal interfaces, are both ubiquitous and non-uniformly distributed at the nano- to mesoscale. This mesoscale heterogeneity is often the controlling structural feature for a wide range of physical properties. Through advances in characterization, theory, and simulation, the behavior and physics of individual defects and the interactions of small numbers of defects at the atomic or nanoscale is well understood. Additionally, diffraction techniques such as neutron and high-energy X-ray scattering give insight into macroscale volume averaged behavior of defects. However, the understanding of the collective behavior of defects and structural inhomogeneity at the mesoscale remains a significant challenge and new experimental and modeling approaches are required to understand the inhomogeneity of deformation fields during materials processing due to mesoscale structural heterogeneity.

This symposium primarily focuses on the various aspects of heterogeneous plastic deformation. It will provide a platform where experiments and simulations meet with the aim to (1) highlight recent milestones in the study of connections between mechanical behavior and underlying microstructure and (2) summarize and improve the developing synergies between experimental approaches and numerical simulations.

Abstracts are solicited in (but are not necessarily limited to) the following areas:
- Experiments and multiscale modeling on deformation behavior of polycrystalling materials
- Theory of localization effects in crystal plasticity
- Mechanics of nanostructured metals
- Advances in small-scale characterization techniques with emphasis on in-situ methods
- Synergies between experiments and simulations
- Intersection of continuum plasticity theories with nanoscale deformation theories damage, fracture, fatigue and creep at the sub-micron scale
- Temperature dependence of plasticity mechanisms
- The role of defects and flaws in small volumes
- Plasticity mechanisms in lower-symmetry and multi-phase systems Linking MD and DD with the higher length-scale models (continuum based crystal plasticity models)
- Interaction of dislocations with grain boundaries
- The use of localization effects in the design of architectured materials
- Grain refinement during severe plastic deformation – observations from simulation and experiment
- Deformation twinning
- Extrapolating from single/bi-crystal experiments and simulation to polycrystalline volumes
Abstracts Due 03/31/2016
Proceedings Plan Definite: MS&T all conference proceedings CD
PRESENTATIONS APPROVED FOR THIS SYMPOSIUM INCLUDE

An Approach to Develop Hansel-spittel Constitutive Equation during Ingot Breakdown Operation of Low Alloy Steels
Collecting In-situ HR-EBSD and DIC Data Simultaneously Stamping a Pattern Semi-transparent to Electrons
Comparison of Strain Measurement Techniques for Tension Testing of Fine Nitinol Wires
Comparisons of 3D Orientation Mapping with Simulation Using a Spectral Method for Tensile Deformation of Zr
Correlating Dislocation Configuration to Deformation Behavior in Additive Manufactured IN718 and Ti-6Al-4V
Deformation at Grain Boundaries in Oligocrystalline Metals
Deformation History of Individual Grains in Polycrystalline Mg-Y by In-situ 3D-XRD
Deformation Mechanisms during High Speed Impaction of Ag Nanoparticles
Designing Heterogeneous Nano-microstructures to Improve Mechanical Properties
Developing a Crystal Plasticity Model Based on the Discrete Element Method
Development of Many-body Potentials for Al-TiN Nanolayered Composites
Dislocation Density-based Modelling of Plastic Deformation of Lath Martensite
Dislocation Nucleation at Grain Boundaries
Effects of Martensite and Ferrite Properties on Hole Expansion Ratio of Dual Phase 980 Steel
Exploring the Effects of Grain Size on Dislocation Interactions and Hardening Using Phase Field Dislocation Dynamics
Exploring the Energy Landscape for Dislocation Motion in Tantalum
Formability of Magnesium Alloy AZ31B from Room Temperature to 150 C
High Throughput Experimental Exploration of Structure-processing-property Relationships in Structural Metal Alloys
Influence of Adjoining Twin Pairs on Subsequent Twinning and Detwinning in HCP Metals
Influence of Grain Size and Crystallographic Orientation on Localized Plastic Strain Distribution in Polycrystalline Beta Titanium Alloys
Insights on Shear Band Behavior in BMGMCs from FFT-based Continuum Modeling
Investigating the Heterogeneous Deformation of Polycrystalline Materials at the Mesoscale
Linking Nanoscale Deformation Mechanisms and Interfaces with Diffraction Profiles in Nanocrystalline Materials
Measurement of Strain Localization during Creep of a Polycrystalline Superalloy Using SEM-based Digital Image Correlation
Meso-scale Interactions between Bulk Dislocations and Grain Boundaries in FCC and BCC Metals
Microstructure and Mechanical Behavior of HCP/BCC Bulk Nanolaminate Composites Produced by Accumulative Roll Bonding
Performance of Viscoplastic Self-Consistent Models in Reflecting Twin Activity in Mg Alloys
Plasticity-induced Restructuring of Nanocrystalline Grain Boundary Networks
Practical Methodology for Inverse Design Exploration of Fatigue Resistant Ti Alloys
Predicting the Bauschinger Effect in Aged Aluminum Alloys
Prediction of the Mechanical Response of DP980 Steel Incorporating a Realistic RVE
Recent Progress in the Concurrent Atomistic-continuum Method and Its Applications to Nano- and Microscale Metal Plasticity
Recrystallized Grain Size Distribution and Mechanical Response of Formed Components in Incoloy 800H
Reference Selection for EBSD Based Grain Reference Orientation Deviation Maps
Simulating Heterogeneous Deformation in Experimentally Characterized Microstructures in Commercial Purity Ti and a Ti Alloy
Strain Evolution in TBF 1180 Microstructures during In-situ Tension Testing
Strain Localisation and the Ductility of HCP Alloys
Stress Concentration and Redistribution at/near Grain Boundaries during Dynamic Recrystallization: An Integrated Modeling Study
Study of Residual Stress in a Ti-7Al Alloy
Study of β-tin Plasticity by Instrumented-indentation Testing
Studying the Micromechanics of Martensitic Phase Transformations Using High Energy Diffraction Microscopy
The Influence of Elastic Anisotropy and the γ Surface in Cross Slip of Copper
Using a Machine Learning Approach to Predict Stress Hotspots


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