FeCrNi medium entropy alloys as potential shielding materials for nuclear applications

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR Applied Radiation and Isotopes Pub Date : 2024-09-07 DOI:10.1016/j.apradiso.2024.111501

Samah A. Al-Shelkamy , Mohamed S. El-Nagdy , Hector Rene Vega-Carrillo

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Abstract

Metallic alloys of different compositions are basic structures for building different types of nuclear reactors. This study evaluates the nuclear properties for three medium entropy alloys against incident neutrons and gamma radiation. The alloys had different chemical compositions prepared by powder technology and were compared with two stainless steel alloys for use in constructing different parts of nuclear power plant units. The shielding parameters were calculated: linear attenuation coefficient, half-value layer, tenth-value layer, mean free path, effective atomic number (Z_eff), effective electronic number, and neutron removal cross-section. The Z_eff of all investigated alloys had a range of 25.46–25.93.Sample 1 medium entropy alloy had the lowest neutron absorption feature and the greatest density (7.890 ± 0.323 g/cm³) and Sample 3 medium entropy alloy had the largest neutron absorption feature. The study indicates that medium entropy alloys have potential for enhancing efficiency and safety of nuclear reactors.

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作为核应用潜在屏蔽材料的铁铬镍中熵合金

不同成分的金属合金是建造不同类型核反应堆的基本结构。本研究评估了三种中等熵合金对入射中子和伽马辐射的核特性。这些合金具有不同的化学成分，由粉末技术制备而成，并与两种用于建造核电厂不同部件的不锈钢合金进行了比较。计算了屏蔽参数：线性衰减系数、半值层、十值层、平均自由路径、有效原子序数（Zeff）、有效电子数和中子去除截面。样品 1 中熵合金的中子吸收特征最小，密度最大（7.890 ± 0.323 g/cm3），样品 3 中熵合金的中子吸收特征最大。研究表明，中熵合金具有提高核反应堆效率和安全性的潜力。

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.