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

Cinbiz, Mahmut N.; Koss, Donald A.; Motta, Arthur T.; Park, Jun -Sang; Almer, Jonathan D.

doi:10.1016/j.jnucmat.2017.02.027

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

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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:

Cinbiz, Mahmut N. ^[1]; Koss, Donald A. ^[2]; Motta, Arthur T. ^[2]; Park, Jun -Sang ^[3]; Almer, Jonathan D. ^[3]

Pennsylvania State Univ., University Park, PA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Pennsylvania State Univ., University Park, PA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

Publication Date:: Mon Feb 20 00:00:00 EST 2017

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:: 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

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                    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.

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                    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.  https://doi.org/10.1016/j.jnucmat.2017.02.027

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                    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.  https://doi.org/10.1016/j.jnucmat.2017.02.027.  https://www.osti.gov/servlets/purl/1374596.

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@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}

}

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