Novel fabricated CoxCrxNixFexAlxTixByMnyRz (R: Mo, Ta, W, Hf and Nb; x = 13, y = 5, z = 12) high entropy alloys for nuclear applications: Radiation interaction and structural features

The principal aim of the paper is to produce innovative alloys for the purpose of investigating their structural properties, as well as their capacity for radiation protection. In this regard, novel CoxCrxNixFexAlxTixByMnyRz (R: Mo, Ta, W, Hf and Nb; x = 13, y = 5, z = 12) alloys were synthesized and mean free path, half value layer, effective atomic number, linear and mass attenuation coefficients, atomic and electronic cross sections, fast neutron removal cross section, buildup factors of the alloys were calculated by employing Phy-X/PSD software. Spectroscopic methods (SEM-EDS and XRD) were performed to get structural findings for the alloys. Attenuating effect of fast neutrons are also achieved to be similar as that of photon. The conclusion drawn from this study is that all of the produced alloys, especially CoxCrxNixFexAlxTixByMnyWz, can be considered suitable new shields for applications where high temperatures are experienced. It can be also stated that W improves the radiation protection properties. The study was conducted with the objective of fabricating new high entropy alloys to enhance radiation protection, and with the objective of generating extensive data on the radiation protective and structural properties of the alloys. © 2026 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.