Defectinduced change of temperaturedependent elastic constants in BCC iron
Abstract
The effects of radiationinduced defects (randomly distributed vacancies, voids, and interstitial dislocation loops) on temperaturedependent elastic constants, C11, C12, and C44 in BCC iron, are studied with molecular dynamics method. The elastic constants are found to decrease with increasing temperatures for all cases containing different defects. The presence of vacancies, voids, or interstitial loops further decreases the elastic constants. For a given number of point defects, the randomly distributed vacancies show the strongest effect compared to voids or interstitial loops. All these results are expected to provide useful information to combine with experimental results for further understanding of radiation damage.
 Authors:
 Publication Date:
 Research Org.:
 Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 1355083
 Report Number(s):
 PNNLSA122758
Journal ID: ISSN 00223115; AT2030110
 DOE Contract Number:
 AC0576RL01830
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Journal of Nuclear Materials; Journal Volume: 490; Journal Issue: C
 Country of Publication:
 United States
 Language:
 English
 Subject:
 36 MATERIALS SCIENCE; elastic constants; vacancy; void; dislocation loop; molecular dynamics; defect
Citation Formats
Gao, N., Setyawan, W., Zhang, S. H., and Wang, Z. G. Defectinduced change of temperaturedependent elastic constants in BCC iron. United States: N. p., 2017.
Web. doi:10.1016/j.jnucmat.2017.04.005.
Gao, N., Setyawan, W., Zhang, S. H., & Wang, Z. G. Defectinduced change of temperaturedependent elastic constants in BCC iron. United States. doi:10.1016/j.jnucmat.2017.04.005.
Gao, N., Setyawan, W., Zhang, S. H., and Wang, Z. G. Sat .
"Defectinduced change of temperaturedependent elastic constants in BCC iron". United States.
doi:10.1016/j.jnucmat.2017.04.005.
@article{osti_1355083,
title = {Defectinduced change of temperaturedependent elastic constants in BCC iron},
author = {Gao, N. and Setyawan, W. and Zhang, S. H. and Wang, Z. G.},
abstractNote = {The effects of radiationinduced defects (randomly distributed vacancies, voids, and interstitial dislocation loops) on temperaturedependent elastic constants, C11, C12, and C44 in BCC iron, are studied with molecular dynamics method. The elastic constants are found to decrease with increasing temperatures for all cases containing different defects. The presence of vacancies, voids, or interstitial loops further decreases the elastic constants. For a given number of point defects, the randomly distributed vacancies show the strongest effect compared to voids or interstitial loops. All these results are expected to provide useful information to combine with experimental results for further understanding of radiation damage.},
doi = {10.1016/j.jnucmat.2017.04.005},
journal = {Journal of Nuclear Materials},
number = C,
volume = 490,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}
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