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Positron annihilation lifetime spectroscopy of advanced reduced-activation alloy (ARAA) in cold‐worked conditions

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Abstract

The defects due to cold-rolling deformation in the advanced reduced-activation alloy (ARAA) have been analyzed using positron annihilation lifetime spectroscopy (PALS). Four different cold-rolled conditions up to 35% reduction from 0% have been used in this study. The mean lifetime of the positron at the cold-worked ARAA samples increased over that of the as-normalized sample, which was comparative to the increase in the amount of grain boundaries in the electron backscatter diffraction images. PALS could determine microstructural change in defects of the cold-rolled ARAA.

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Acknowledgements

This work was supported by Radiation Technology R&D program through the National Research Foundation of Korea funded by the Ministry of Science and ICT (RF-2017M2A2A6A05018529) and the National Research Foundation of Korea funded by the Ministry of Science and ICT (1711078081).

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Authors and Affiliations

  1. HANARO Utilization Division, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989beon-gil, Yuseong-gu, Daejeon, 34057, Republic of Korea

    Young Su Jeong, Jaegi Lee, Young Rang Uhm & Gwang-Min Sun

  2. Department of Radiological Science, Daegu Catholic University, 13-13, Hayang-ro, Hayang- eup, Gyeongsan-si, Gyeongbuk, 38430, Republic of Korea

    Young Su Jeong & Yong Min Kim

  3. Advanced 3D Printing Technology Development Division, Korea Atomic Energy Research Institute, 111, Daedeok-daero 989beon-gil, Yuseong-gu, Daejeon, 34057, Republic of Korea

    Young-Bum Chun

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  1. Young Su Jeong
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Correspondence to Jaegi Lee.

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Jeong, Y.S., Lee, J., Chun, YB. et al. Positron annihilation lifetime spectroscopy of advanced reduced-activation alloy (ARAA) in cold‐worked conditions. J Radioanal Nucl Chem 330, 513–519 (2021). https://doi.org/10.1007/s10967-021-07758-0

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  • DOI: https://doi.org/10.1007/s10967-021-07758-0

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