Discovering mechanisms relevant for radiation damage evolution
Abstract
he response of a material to irradiation is a consequence of the kinetic evolution of defects produced during energetic damage events. Thus, accurate predictions of radiation damage evolution require knowing the atomic scale mechanisms associated with those defects. Atomistic simulations are a key tool in providing insight into the types of mechanisms possible. Further, by extending the time scale beyond what is achievable with conventional molecular dynamics, even greater insight can be obtained. Here, we provide examples in which such simulations have revealed new kinetic mechanisms that were not obvious before performing the simulations. We also demonstrate, through the coupling with higher level models, how those mechanisms impact experimental observables in irradiated materials. Lastly, we discuss the importance of these types of simulations in the context of predicting material behavior.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22)
- OSTI Identifier:
- 1440496
- Report Number(s):
- LA-UR-18-21071
Journal ID: ISSN 0927-0256; TRN: US1900756
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Computational Materials Science
- Additional Journal Information:
- Journal Volume: 147; Journal Issue: C; Journal ID: ISSN 0927-0256
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Reactions; Kinetics; Long time scales; Radiation damage
Citation Formats
Uberuaga, Blas Pedro, Martinez, Enrique Saez, Perez, Danny, and Voter, Arthur Ford. Discovering mechanisms relevant for radiation damage evolution. United States: N. p., 2018.
Web. doi:10.1016/j.commatsci.2018.01.052.
Uberuaga, Blas Pedro, Martinez, Enrique Saez, Perez, Danny, & Voter, Arthur Ford. Discovering mechanisms relevant for radiation damage evolution. United States. doi:10.1016/j.commatsci.2018.01.052.
Uberuaga, Blas Pedro, Martinez, Enrique Saez, Perez, Danny, and Voter, Arthur Ford. Thu .
"Discovering mechanisms relevant for radiation damage evolution". United States. doi:10.1016/j.commatsci.2018.01.052. https://www.osti.gov/servlets/purl/1440496.
@article{osti_1440496,
title = {Discovering mechanisms relevant for radiation damage evolution},
author = {Uberuaga, Blas Pedro and Martinez, Enrique Saez and Perez, Danny and Voter, Arthur Ford},
abstractNote = {he response of a material to irradiation is a consequence of the kinetic evolution of defects produced during energetic damage events. Thus, accurate predictions of radiation damage evolution require knowing the atomic scale mechanisms associated with those defects. Atomistic simulations are a key tool in providing insight into the types of mechanisms possible. Further, by extending the time scale beyond what is achievable with conventional molecular dynamics, even greater insight can be obtained. Here, we provide examples in which such simulations have revealed new kinetic mechanisms that were not obvious before performing the simulations. We also demonstrate, through the coupling with higher level models, how those mechanisms impact experimental observables in irradiated materials. Lastly, we discuss the importance of these types of simulations in the context of predicting material behavior.},
doi = {10.1016/j.commatsci.2018.01.052},
journal = {Computational Materials Science},
number = C,
volume = 147,
place = {United States},
year = {2018},
month = {2}
}
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