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Meeting 2014 TMS Annual Meeting & Exhibition
Symposium Mechanical Behavior Related to Interface Physics II
Sponsorship TMS Materials Processing and Manufacturing Division
TMS Structural Materials Division
TMS: Nanomechanical Materials Behavior Committee
Organizer(s) Nan Li, Los Alamos National Laboratory
Jian Wang, Los Alamos National Laboratory
Nathan Mara, Los Alamos National Laboratory
Tonya W. Stone, Mississippi State University
Scope Future energy technologies demand novel materials that tolerate extremes in temperature, strain, strain rate, and radiation to an extent that far exceeds the limits of even the most advanced materials to date. To meet these needs, promising new material candidates are nanostructured multi-phase/multi-interface materials. Interfaces, such as grain boundaries, phase boundaries, and surfaces are important in materials of any microstructural size scale, whether the microstructure is coarse grained, ultra-fine grained or nanograined. In nanostructured materials, however, they dominate material response and can lead to extraordinary and unusual properties that far exceed those of their coarse-grained counterparts.

To accelerate the development and acceptance of new concepts and methodologies in understanding interface physics in monophase and multiphase materials and characterizing and fabricating materials with designed interfaces, this symposium will focus on recent achievements in materials development in terms of the understanding of deformation mechanisms, the exploitation of advanced properties (e.g. shock or radiation tolerance), the testing technologies for characterization of small volumes of material, and the 3-D tomographic analysis of defects. Abstracts on recent developments in mechanical testing techniques (e.g., in situ straining in TEM, micropillar testing, etc) and in high-fidelity modeling techniques (e.g., ab initio, molecular dynamics, etc) are also solicited.

The subject areas of the symposium include, but are not limited to:

Mechanical behavior and synthesis of low dimensional materials (e.g., thin films, nanowires, nanotubes, and nanoparticles)
Characterization and modeling of monophase grain boundary and twin boundary effects on mechanical behavior
Phase Boundaries and Multiphase composites, such as metallic glass/ nanocrystalline composites, layered nanocomposites, nanoparticle/matrix composites and nanoporous materials
Advanced materials development such as nanocrystalline materials (metals and ceramics)

Atomistic scale modeling of defects-interfaces interaction, deformation mechanisms and interface interaction with radiation-induced defects
Micro, Meso, and Macro-scales modeling of deformation processes and phenomena as they relate to interface physics

In situ testing methodologies for investigating the mechanical or ion irradiation behavior of small volumes of material
Microscale mechanical testing
3-D tomographic analysis of defects
Abstracts Due 07/15/2013
Proceedings Plan Planned: A print-only volume

3D Discrete Dislocation Dynamics Simulations of Plasticity in Al-TiN Nanolayered Composites
A 2D Dislocations Dynamics Model for Nanotwinned Materials
A Study of the Dynamical Behavior of Dislocations in Irradiated Nanocrystalline Iron by In Situ TEM Tensile Testing
Angstrom Scaled Twin Boundary Role on Ductile to Brittle Transition in Soft Gold Wires
Atomic Scale Understanding of 6.8 GPa Ultra-high Strength Pearlite
Atomistic and Electron Tomography Study of 3D Dislocation-grain Boundary Interaction in BCC Metals
Atomistic Simulation on the Structure and Mechanical Response of ∑3, ∑5 Tilt Grain Boundaries under Tension
Buckling Behaviors and Adhesion Energy of Nanostructured Cu/X (X = Nb, Zr) Multilayer Films on Compliant Substrate
Deformability of Ultrahigh Strength Metal-Ceramic Cu/TiN Nanolayered Composites
Density-functional Theory Methods for Interfaces: Lattice Greens Function and Energy Density Methods
Disclinations and the Mechanical Properties of Polycrystals
Dislocation Mechanisms in Semi-coherent Interfaces in Nanoscale Metallic Laminates
Effect of Friction Stir Welding on the Structural Stability and Local Mechanical Properties in Cu-Nb Multilayered Nano-composites
Effect of Joining on Texture Evolution and Interface Character in Bulk Cu-Nb Multilayer Nanocomposites
Effect of Misfit Dislocations on Structure, Bonding and Adhesive Strength of Interfaces between bcc and fcc Fe and Transition Metal Carbides: First Principles Modeling
Emission of Dislocations from Grain Boundaries
Extraordinary Stability of Nano-twinned Structure and Its Mechanical Behavior in Electrodeposited Co-Ni Alloys
Grain Boundary-defect Interactions Under Loading of Irradiated Nanocrystalline Films
Hardness Versus Layer Thickness in Laminate Composites
High-temperature Mechanical Properties of Physical Vapour-deposited and Accumulative Roll-bonded Cu/Nb Nanoscale Multilayers
High Temperature Deformation Behavior and Modeling of Al/SiC Nanolaminates
High Temperature Properties of Nanoscale Cu Based Composites and Foams
In Situ and Ex Situ TEM Experiments to Elucidate Defect Interface Interactions in Ag-Cu Composites
In Situ Atomic-scale Observation of Irradiation-induced Void Formation
In Situ Ion Irradiation and Fatigue TEM Experiments of Nanocrystalline Metals
In Situ TEM Observations of Surface and Interface Phenomena during Nanomechanical Testing
In Situ TEM Study of Dislocation-precipitate Interactions in Alpha Titanium-oxygen Solid Solutions
Interface-based Plasticity in the Nanoscale Multilayers as Revealed by Synchrotron X-ray Microdiffraction
Interface Behavior in Plastically Deformed Nanoscale Metallic Multilayers
Interpreting Hardness Data in Nanoscale Multilayer Thin Films
Investigation of Deformation in Al-Mg Alloys Using a Combined In Situ TEM Deformation/Dislocation Tomography Approach
Local Decomposition Induced by Dislocation Motions Inside Precipitates in an Al-alloy
MD Study of PMMA/CNT Nanocomposites
Mechanical Behavior of Cr Films on Polyimide as a Function of the Deposition Technique
Mechanical behavior of Nanotwinned Metals
Mechanisms of Dipolar Loop Formation and Interactions in FCC metals
Modelling and Understanding the Strength of Grain Boundaries Based on Ab-initio Results
Molecular Dynamics Based Study and Characterization of Deformation Mechanisms near a Crack in a Crystalline Material
Plasticity Evolution in the Nanoscale Cu/Nb Multilayers as Revealed by Synchrotron X-ray Microdiffraction
Quantifying Nanoindentation Deformation Processes near Grain Boundaries in Alpha-titanium Using Microscopic Characterization and Crystal Plasticity Modeling
Reverse Plastic Strain in Polycrystalline Materials
Simulations for 2-D and 3-D Thermoelastic Stress Distributions in Textured Sn Films Related to Whisker Formation
Stacking Fault and Partial Dislocation Dominated Strengthening Mechanisms in Highly Textured Cu/Co Multilayers
Stress for Transmission of Dislocations Across Interfaces in Multilayers and Reverse Hall-petch Relationship in the Ultrathin Layer Thickness Limit
Temporal and Spatial Stochasticity of Plastic Flow in Small Volumes
Texture Evolution and Bingham Modeling of Nb in Multilayered Ti/Al/Nb Composite Fabricated by ARB Processing
The Effects of Grain Boundary Volume Fraction and Relaxation State on Uniaxial Plasticity of Nanocrystalline Metals
The Influence of Interfacial Character on Shear Instability in Nanolamellar Composites
The Influence of Twin Boundaries on the Stability and Deformation of Nanocrystalline Copper with Atomistic Simulations
Towards Statistical and Comprehensive Three Dimensional Characterization of Planar Defects and Properties
Twin-twin Interactions in Magnesium Single Crystal
Understanding the Role of Grain Boundaries during Deformation Using Spherical Nanoindentation and Orientation Imaging Microscopy
Visualizing Displacive Versus Diffusive Plasticity of Sn: From “Smaller is Stronger” to “Smaller is Much Weaker”
X-ray Diffraction Studies of Forward and Reverse Plastic Flow in Nanoscale Layers during Thermal Cycling

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