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About this Symposium
Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Computational and Modeling Challenges in Metals and Alloys for Extreme Environments
Sponsorship TMS Materials Processing and Manufacturing Division
TMS Structural Materials Division
TMS: Computational Materials Science and Engineering Committee
TMS: Integrated Computational Materials Engineering Committee
Organizer(s) Jean-Briac le Graverend, Texas A&M University
Jaafar A. El-Awady, Johns Hopkins University
Giacomo Po, University of Miami
Beņat Gurrutxaga-Lerma, University of Birmingham
Scope This symposium is aimed at presenting the challenges faced in computation and modeling in extreme environments, with an emphasis on high temperature, for scales ranging from nano- to macro-scales. For instance, how to combine in realistic computational timescales climb and glide that operate at different time scales, namely nanoseconds for glide and several microseconds for climb; how to introduce non-conservative movement of dislocations (i.e. climb) in molecular dynamics, how to take into consideration that the micro-mechanisms are dependent on the microstructural state which evolves quickly for harsh conditions, how to extend theories that are based on isothermal experimental data and are found to be wrong for non-isothermal conditions, etc. The symposium is also aimed at presenting the challenges associated to the multi-scale approach: which scale is the most important to consider given that loading in extreme environments comes with larger and faster evolutions at all scales. This symposium provides a platform for fostering new ideas about what are the current challenges for better predicting the mechanical behavior and damage of materials exposed to extreme environments at all scales.

The symposium will be organized into the 4 following sessions that will accept abstracts on the various length scales:

• Creep and high-temperature deformation of crystals
• Mechanisms of deformation at high strain rates
• Radiation effects on plastic deformation
• Time and scale bridging in extreme environments

Abstracts Due 07/20/2020
Proceedings Plan Planned:

A Thermo-mechanical Model of the Dynamics of Dislocation Fields in Transient Heterogeneous Temperature Fields
Investigation of Role of Interface Microstructure on the Shock Compression and Spall Failure Behavior of Nanoscale Cu/Ta Multiphase Metallic Materials
Lattice Orientation Effect on Intragranular Void Growth in Single- and Poly-crystalline Metals
Mesoscale Modeling of Deformation Behavior of Fe-based Microstructures at High Strain Rates and under Shock Loading Conditions
Modeling of Laser Interactions with BCC Metals Using a Hybrid Atomistic-continuum Approach
Molecular Dynamics Modeling of the Influence of Magnesium Dopants on Grain Boundary Stabilization in Nanocrystalline Aluminum
Multi-scale Simulations of Crystallographic Facet-orientation Dependent Corrosion Behavior in Metallic Alloys
The Microscopic Structure of a Heavily Irradiated Metal
The Role of Precipitates on the Microstructure-sensitive Creep Response of 347H Steel via Crystal Plasticity Simulations
Understanding Interface Properties Through Dislocation Dynamics Simulations in Metallic Nanolaminates

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