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Title: Stability of nanosized oxides in ferrite under extremely high dose self ion irradiations

Abstract

We produced a nanostructured ferritic alloy (NFA), 14YWT, in the form of thin walled tubing. The stability of the nano-oxides (NOs) was determined under 3.5 MeV Fe+2 irradiations up to a dose of ~585 dpa at 450 °C. Transmission electron microscopy (TEM) and atom probe tomography (APT) show that severe ion irradiation results in a ~25% reduction in size between the unirradiated and irradiated case at 270 dpa while no further reduction within the experimental error was seen at higher doses. Conversely, number density increased by ~30% after irradiation. Moreover, this ‘inverse coarsening’ can be rationalized by the competition between radiation driven ballistic dissolution and diffusional NO reformation. There were no significant changes in the composition of the matrix or NOs observed after irradiation. Modeling the experimental results also indicated a dissolution of the particles.

Authors:
 [1];  [1];  [2];  [3];  [4];  [4];  [4];  [4];  [4];  [4];  [1];  [1]; ORCiD logo [5];  [6];  [2]
  1. Univ. of California, Santa Barbara, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of New Mexico, Albuquerque, NM (United States)
  4. Texas A & M Univ., College Station, TX (United States)
  5. Case Western Reserve Univ., Cleveland, OH (United States)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1351787
Alternate Identifier(s):
OSTI ID: 1340917; OSTI ID: 1419385
Report Number(s):
LA-UR-16-22034
Journal ID: ISSN 0022-3115; AF5810000; NEAF225; TRN: US1701012
Grant/Contract Number:  
AC05-00OR22725; AC52-06NA25396; NE0008297
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 486; 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; 36 MATERIALS SCIENCE

Citation Formats

Almirall, Nathan, Odette, George R., Maloy, S. A., Anderoglu, Osman, Shao, Lin, Gigax, Jonathan G., Price, Lloyd, Chen, D., Chen, Tianyi, Garner, Frank A., Wu, Yuan, Wells, Peter, Lewandowski, John J., Hoelzer, David T., and Aydogan, Eda. Stability of nanosized oxides in ferrite under extremely high dose self ion irradiations. United States: N. p., 2017. Web. doi:10.1016/j.jnucmat.2017.01.015.
Almirall, Nathan, Odette, George R., Maloy, S. A., Anderoglu, Osman, Shao, Lin, Gigax, Jonathan G., Price, Lloyd, Chen, D., Chen, Tianyi, Garner, Frank A., Wu, Yuan, Wells, Peter, Lewandowski, John J., Hoelzer, David T., & Aydogan, Eda. Stability of nanosized oxides in ferrite under extremely high dose self ion irradiations. United States. https://doi.org/10.1016/j.jnucmat.2017.01.015
Almirall, Nathan, Odette, George R., Maloy, S. A., Anderoglu, Osman, Shao, Lin, Gigax, Jonathan G., Price, Lloyd, Chen, D., Chen, Tianyi, Garner, Frank A., Wu, Yuan, Wells, Peter, Lewandowski, John J., Hoelzer, David T., and Aydogan, Eda. Tue . "Stability of nanosized oxides in ferrite under extremely high dose self ion irradiations". United States. https://doi.org/10.1016/j.jnucmat.2017.01.015. https://www.osti.gov/servlets/purl/1351787.
@article{osti_1351787,
title = {Stability of nanosized oxides in ferrite under extremely high dose self ion irradiations},
author = {Almirall, Nathan and Odette, George R. and Maloy, S. A. and Anderoglu, Osman and Shao, Lin and Gigax, Jonathan G. and Price, Lloyd and Chen, D. and Chen, Tianyi and Garner, Frank A. and Wu, Yuan and Wells, Peter and Lewandowski, John J. and Hoelzer, David T. and Aydogan, Eda},
abstractNote = {We produced a nanostructured ferritic alloy (NFA), 14YWT, in the form of thin walled tubing. The stability of the nano-oxides (NOs) was determined under 3.5 MeV Fe+2 irradiations up to a dose of ~585 dpa at 450 °C. Transmission electron microscopy (TEM) and atom probe tomography (APT) show that severe ion irradiation results in a ~25% reduction in size between the unirradiated and irradiated case at 270 dpa while no further reduction within the experimental error was seen at higher doses. Conversely, number density increased by ~30% after irradiation. Moreover, this ‘inverse coarsening’ can be rationalized by the competition between radiation driven ballistic dissolution and diffusional NO reformation. There were no significant changes in the composition of the matrix or NOs observed after irradiation. Modeling the experimental results also indicated a dissolution of the particles.},
doi = {10.1016/j.jnucmat.2017.01.015},
journal = {Journal of Nuclear Materials},
number = C,
volume = 486,
place = {United States},
year = {Tue Jan 10 00:00:00 EST 2017},
month = {Tue Jan 10 00:00:00 EST 2017}
}

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Works referencing / citing this record:

Effect of High-Density Nanoparticles on Recrystallization and Texture Evolution in Ferritic Alloys
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α′ formation kinetics and radiation induced segregation in neutron irradiated 14YWT nanostructured ferritic alloys
journal, June 2019


Influence of Al Addition Strategy on the Microstructure of a Low‐Cr Oxide Dispersion‐Strengthened Ferritic Steel
journal, December 2019

  • Xu, Shuai; Zhou, Zhangjian; Long, Fei
  • Advanced Engineering Materials, Vol. 22, Issue 4
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An in situ study on Kr ion–irradiated crystalline Cu/amorphous-CuNb nanolaminates
journal, March 2019

  • Fan, Zhe; Fan, Cuncai; Li, Jin
  • Journal of Materials Research, Vol. 34, Issue 13
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