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Shear Punch Testing of Neutron-Irradiated HT-9 and 14YWT

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Abstract

Shear punch mechanical testing was performed on neutron-irradiated HT-9 and 14YWT alloys, comparing the traditional ferritic/martensitic steel with the advanced oxide dispersion strengthened nanostructured ferritic alloy. The samples were irradiated at various temperatures between 380°C and 520°C. In HT-9, on increasing the irradiation temperature, the 1% offset shear stress and maximum shear stress decreased. The advanced 14YWT alloy was less sensitive to irradiation temperature with respect to irradiation hardening. However, it still exhibited irradiation hardening at each temperature.

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Acknowledgements

Work was performed at Los Alamos National Laboratory. Los Alamos National Laboratory is an affirmative action/equal opportunity employer, and is operated by Triad National Security, LLC for the National Nuclear Security Administration of the US Department of Energy under Contract 89233218CNA000001. Also acknowledged is the SNAP program led by Dr. Gary Was at the University of Michigan, for preparing the samples and working with TerraPower LLC to organize this irradiation.

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Authors and Affiliations

  1. Los Alamos National Laboratory: MST-8, Los Alamos, NM, 87501, USA

    Benjamin P. Eftink, Tarik A. Saleh & Stuart A. Maloy

  2. Los Alamos National Laboratory: C-AAC, Los Alamos, NM, 87501, USA

    Matthew E. Quintana & Tobias J. Romero

  3. TerraPower, LLC, Bellevue, WA, 98008, USA

    Cheng Xu

  4. Oak Ridge National Laboratory: MST, Oak Ridge, USA

    David T. Hoelzer

Authors
  1. Benjamin P. Eftink
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  2. Matthew E. Quintana
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  4. Cheng Xu
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  5. David T. Hoelzer
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  6. Tarik A. Saleh
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Correspondence to Benjamin P. Eftink.

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Eftink, B.P., Quintana, M.E., Romero, T.J. et al. Shear Punch Testing of Neutron-Irradiated HT-9 and 14YWT. JOM 72, 1703–1709 (2020). https://doi.org/10.1007/s11837-020-04011-z

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  • DOI: https://doi.org/10.1007/s11837-020-04011-z

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