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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Computational and Modeling Challenges in Metals and Alloys for Extreme Environments
Presentation Title The Microscopic Structure of a Heavily Irradiated Metal
Author(s) Peter Derlet, Sergei Dudarev
On-Site Speaker (Planned) Peter Derlet
Abstract Scope Using atomistic simulation, we study the material response of the steady-state micro-structure produced under high-dosage irradiation conditions. Such a micro-structure contains an extended dislocation network embedded in a largely homogeneous population of vacancies. We find that local perturbations to such a structure can result in a non-local response, reflecting a steady-state fluctuation spectrum driven by internal stresses that accumulate the stochastic generation of point defects. Both BCC Fe and W are considered up to canonical DPA values of O(20).
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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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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