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Radiation induced detwinning in nanotwinned Cu

Journal Article · · Scripta Materialia
 [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)
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.
Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE; USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC02-06CH11357; AC52-06NA25396
OSTI ID:
1353020
Alternate ID(s):
OSTI ID: 1460450
Report Number(s):
LA-UR--16-28562
Journal Information:
Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: C Vol. 130; ISSN 1359-6462
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

In Situ Studies on the Irradiation-Induced Twin Boundary-Defect Interactions in Cu journal August 2017
Recent Studies on the Microstructural Response of Nanotwinned Metals to In Situ Heavy Ion Irradiation journal November 2019
Detwinning through migration of twin boundaries in nanotwinned Cu films under in situ ion irradiation journal March 2018

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