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Title: In situ synchrotron X-ray diffraction study of hydrides in Zircaloy-4 during thermomechanical cycling

Abstract

The d-spacing evolution of both in-plane and out-of-plane hydrides has been studied using in situ synchrotron radiation X-ray diffraction during thermo-mechanical cycling of cold-worked stress-relieved Zircaloy-4. The structure of the hydride precipitates is such that the δ{111} d-spacing of the planes aligned with the hydride platelet face is greater than the d-spacing of the 111 planes aligned with the platelet edges. Upon heating from room temperature, the δ{111} planes aligned with hydride plate edges exhibit bi-linear thermally-induced expansion. In contrast, the d-spacing of the (111) plane aligned with the hydride plate face initially contracts upon heating. Furthermore, these experimental results can be understood in terms of a reversal of stress state associated with precipitating or dissolving hydride platelets within the α-zirconium matrix.

Authors:
 [1];  [2];  [2];  [3];  [3]
  1. Pennsylvania State Univ., University Park, PA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); U. S. Nuclear Regulatory Commission (NRC)
OSTI Identifier:
1374596
Alternate Identifier(s):
OSTI ID: 1411831
Grant/Contract Number:
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 487; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; Zircaloy-4; Zirconium hydride; hydride reorientation; precipitation; synchrotron radiation diffraction; thermomechanical cycling

Citation Formats

Cinbiz, Mahmut N., Koss, Donald A., Motta, Arthur T., Park, Jun -Sang, and Almer, Jonathan D.. In situ synchrotron X-ray diffraction study of hydrides in Zircaloy-4 during thermomechanical cycling. United States: N. p., 2017. Web. doi:10.1016/j.jnucmat.2017.02.027.
Cinbiz, Mahmut N., Koss, Donald A., Motta, Arthur T., Park, Jun -Sang, & Almer, Jonathan D.. In situ synchrotron X-ray diffraction study of hydrides in Zircaloy-4 during thermomechanical cycling. United States. doi:10.1016/j.jnucmat.2017.02.027.
Cinbiz, Mahmut N., Koss, Donald A., Motta, Arthur T., Park, Jun -Sang, and Almer, Jonathan D.. Mon . "In situ synchrotron X-ray diffraction study of hydrides in Zircaloy-4 during thermomechanical cycling". United States. doi:10.1016/j.jnucmat.2017.02.027. https://www.osti.gov/servlets/purl/1374596.
@article{osti_1374596,
title = {In situ synchrotron X-ray diffraction study of hydrides in Zircaloy-4 during thermomechanical cycling},
author = {Cinbiz, Mahmut N. and Koss, Donald A. and Motta, Arthur T. and Park, Jun -Sang and Almer, Jonathan D.},
abstractNote = {The d-spacing evolution of both in-plane and out-of-plane hydrides has been studied using in situ synchrotron radiation X-ray diffraction during thermo-mechanical cycling of cold-worked stress-relieved Zircaloy-4. The structure of the hydride precipitates is such that the δ{111} d-spacing of the planes aligned with the hydride platelet face is greater than the d-spacing of the 111 planes aligned with the platelet edges. Upon heating from room temperature, the δ{111} planes aligned with hydride plate edges exhibit bi-linear thermally-induced expansion. In contrast, the d-spacing of the (111) plane aligned with the hydride plate face initially contracts upon heating. Furthermore, these experimental results can be understood in terms of a reversal of stress state associated with precipitating or dissolving hydride platelets within the α-zirconium matrix.},
doi = {10.1016/j.jnucmat.2017.02.027},
journal = {Journal of Nuclear Materials},
number = C,
volume = 487,
place = {United States},
year = {Mon Feb 20 00:00:00 EST 2017},
month = {Mon Feb 20 00:00:00 EST 2017}
}

Journal Article:
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