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<p>This study investigates γ-ray shielding properties of Ni–Ti–Hf shape memory alloys under uniaxial tension, correlating their mechanical properties with linear attenuation coefficients (LAC). We evaluated LAC (cm<sup>–1</sup>) values across various photon energies (<i>E</i> (MeV)), Ti:Hf ratio and APF, revealing an increase in LAC as (<i>E</i>, Ti:Hf, APF, LAC): (0.1, 2:3, 0.70, 32.5) to (0.1, 0:5, 0.74, 49.8) for samples subject to maximum deformation. The mechanical properties were also found to correlate very well with the γ-rays attenuation under optimal conditions. Notably, the plastic deformation of the alloys was found to enhance radiation shielding performance, with a significant reduction in γ-ray transmission (e.g., LAC = 1520 cm<sup>–1</sup>) observed in samples with higher mass recovery (e.g., 120%) rates post-deformation. These findings underscore the importance of maintaining alloy density and optimizing mechanical properties for effective radiation shielding in practical applications.</p>

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Exploring the synergy between mechanical and radiation shielding properties in Ni–Ti–Hf shape memory alloys

  • 期刊论文

  • 发表日期：

    2025年7月19日

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  • Z Y Khattari

摘要

This study investigates γ-ray shielding properties of Ni–Ti–Hf shape memory alloys under uniaxial tension, correlating their mechanical properties with linear attenuation coefficients (LAC). We evaluated LAC (cm–1) values across various photon energies (E (MeV)), Ti:Hf ratio and APF, revealing an increase in LAC as (E, Ti:Hf, APF, LAC): (0.1, 2:3, 0.70, 32.5) to (0.1, 0:5, 0.74, 49.8) for samples subject to maximum deformation. The mechanical properties were also found to correlate very well with the γ-rays attenuation under optimal conditions. Notably, the plastic deformation of the alloys was found to enhance radiation shielding performance, with a significant reduction in γ-ray transmission (e.g., LAC = 1520 cm–1) observed in samples with higher mass recovery (e.g., 120%) rates post-deformation. These findings underscore the importance of maintaining alloy density and optimizing mechanical properties for effective radiation shielding in practical applications.