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<p>Oxide dispersion-strengthened alloys have emerged as a highly effective solution to address the physical, structural, and shielding challenges faced by traditional alloys in nuclear environments.&#xa0;This study presents a comprehensive evaluation of the microstructural, mechanical, and radiation shielding properties of Yb<sub>2</sub>O<sub>3</sub> oxide dispersion-strengthened 316L stainless steel composites at varying Yb<sub>2</sub>O<sub>3</sub> concentrations such as 1%, 5%, 10%, and 20% by weight. XRD analysis revealed lattice distortions, with crystallite sizes decreasing from 11.2267&#xa0;nm to 9.3351&#xa0;nm. SEM/EDX analyses confirmed homogeneous Yb<sub>2</sub>O<sub>3</sub> dispersion at lower concentrations, with agglomeration at 20% Yb<sub>2</sub>O<sub>3</sub>. The mass attenuation coefficient increased from 56.103&#xa0;cm<sup>2</sup>/g to 65.919&#xa0;cm<sup>2</sup>/g at 0.015&#xa0;MeV, marking a 17.5% enhancement. HVL decreased by 40.68% at 0.2&#xa0;MeV for the 20% Yb<sub>2</sub>O<sub>3</sub> sample. Additionally, the 20% Yb<sub>2</sub>O<sub>3</sub> composite showed nearly 33% lower transmission factor at 3.0&#xa0;cm thickness and 0.662&#xa0;MeV. It can be concluded that Yb<sub>2</sub>O<sub>3</sub> reinforcement significantly enhances the microstructural, and gamma-ray attenuation properties of 316L-SS composites, positioning them as promising materials for advanced nuclear shielding and structural applications.</p>

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An investigation on microstructural, physical, and radiation shielding properties Yb2O3 oxide dispersion-strengthened 316L-SS alloys

  • 期刊论文

  • 发表日期：

    2025年3月18日

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  • Ghada ALMisned,
  • Nihal Yayla,
  • M. Gökhan Albayrak,
  • Ömer Güler,
  • Duygu Sen Baykal,
  • Hessa Alkarrani,
  • Gulfem Susoy,
  • H. O. Tekin

摘要

Oxide dispersion-strengthened alloys have emerged as a highly effective solution to address the physical, structural, and shielding challenges faced by traditional alloys in nuclear environments. This study presents a comprehensive evaluation of the microstructural, mechanical, and radiation shielding properties of Yb2O3 oxide dispersion-strengthened 316L stainless steel composites at varying Yb2O3 concentrations such as 1%, 5%, 10%, and 20% by weight. XRD analysis revealed lattice distortions, with crystallite sizes decreasing from 11.2267 nm to 9.3351 nm. SEM/EDX analyses confirmed homogeneous Yb2O3 dispersion at lower concentrations, with agglomeration at 20% Yb2O3. The mass attenuation coefficient increased from 56.103 cm2/g to 65.919 cm2/g at 0.015 MeV, marking a 17.5% enhancement. HVL decreased by 40.68% at 0.2 MeV for the 20% Yb2O3 sample. Additionally, the 20% Yb2O3 composite showed nearly 33% lower transmission factor at 3.0 cm thickness and 0.662 MeV. It can be concluded that Yb2O3 reinforcement significantly enhances the microstructural, and gamma-ray attenuation properties of 316L-SS composites, positioning them as promising materials for advanced nuclear shielding and structural applications.