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Title: Radiation induced detwinning in nanotwinned Cu

Abstract

Superior radiation tolerance has been experimentally examined in nanotwinned metals. The stability of nanotwinned structure under radiation is the key factor for advancing the application of nanotwinned metals for nuclear reactors. We thus performed in situ radiation tests for nanotwinned Cu with various twin thicknesses inside a transmission electron microscope. We found that there is a critical twin thickness (10 nm), below which, radiation induced detwinning is primarily accomplished through migration of incoherent twin boundaries. Lastly, detwinning is faster for thinner twins in this range, while thicker twins are more stable.

Authors:
ORCiD logo [1];  [2];  [3];  [3];  [4];  [5]
  1. Texas A & M Univ., College Station, TX (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Univ. of Nebraska, Lincoln, NE (United States)
  5. Texas A & M Univ., College Station, TX (United States); Purdue Univ., West Lafayette, IN (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1353020
Alternate Identifier(s):
OSTI ID: 1460450
Report Number(s):
LA-UR-16-28562
Journal ID: ISSN 1359-6462
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 130; Journal Issue: C; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; material science

Citation Formats

Chen, Youxing, Wang, Haiyan, Kirk, Mark A., Li, Meimei, Wang, Jian, and Zhang, Xinghang. Radiation induced detwinning in nanotwinned Cu. United States: N. p., 2016. Web. doi:10.1016/j.scriptamat.2016.10.033.
Chen, Youxing, Wang, Haiyan, Kirk, Mark A., Li, Meimei, Wang, Jian, & Zhang, Xinghang. Radiation induced detwinning in nanotwinned Cu. United States. doi:10.1016/j.scriptamat.2016.10.033.
Chen, Youxing, Wang, Haiyan, Kirk, Mark A., Li, Meimei, Wang, Jian, and Zhang, Xinghang. Tue . "Radiation induced detwinning in nanotwinned Cu". United States. doi:10.1016/j.scriptamat.2016.10.033. https://www.osti.gov/servlets/purl/1353020.
@article{osti_1353020,
title = {Radiation induced detwinning in nanotwinned Cu},
author = {Chen, Youxing and Wang, Haiyan and Kirk, Mark A. and Li, Meimei and Wang, Jian and Zhang, Xinghang},
abstractNote = {Superior radiation tolerance has been experimentally examined in nanotwinned metals. The stability of nanotwinned structure under radiation is the key factor for advancing the application of nanotwinned metals for nuclear reactors. We thus performed in situ radiation tests for nanotwinned Cu with various twin thicknesses inside a transmission electron microscope. We found that there is a critical twin thickness (10 nm), below which, radiation induced detwinning is primarily accomplished through migration of incoherent twin boundaries. Lastly, detwinning is faster for thinner twins in this range, while thicker twins are more stable.},
doi = {10.1016/j.scriptamat.2016.10.033},
journal = {Scripta Materialia},
number = C,
volume = 130,
place = {United States},
year = {2016},
month = {11}
}

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