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Title: Evaluation of radiation shielding features of co and ni-based superalloys using mcnp-5 code: Potential use in nuclear safety
Authors: Sayyed, M. I.
Mohammed, F. Q.
Mahmoud, K. A.
Lacomme, E.
Kaky, K. M.
Khandaker, M. U.
Faruque, M. R. I.
Issue Date: 2020
Publisher: MDPI AG
Citation: Evaluation of radiation shielding features of co and ni-based superalloys using mcnp-5 code: Potential use in nuclear safety / M. I. Sayyed, F. Q. Mohammed, K. A. Mahmoud, et al. — DOI 10.3390/app10217680 // Applied Sciences (Switzerland). — 2020. — Vol. 10. — Iss. 21. — P. 1-14. — 7680.
Abstract: Due to their excellent heat resistance, superalloys are used predominantly in the manufacturing of engine parts and accessories for aircraft and aerospace equipment. The Monte Carlo simulation (MCNP-5) code was performed to estimate the mean track length of the incident photons inside six different alloys. Then, based on the simulated track length, other important γ-ray shielding parameters were calculated. In this study, the highest mass attenuation coefficient was obtained for alloys encoded MAR-302 and MAR-247 and varied in the range 0.035–72.94 and 0.035–71.98 cm2·g−1, respectively. The lowest mass attenuation coefficient was found for alloys coded Inconel-718 and Nimocast-75 with a range of 0.033–59.25 and 0.32–59.30 cm2·g−1, respectively. Use was made of a recently developed online program Phy-X/PD to calculate the effective atomic number, equivalent atomic number, and the buildup factors for the alloys of interest. The effective removal cross-section for the fast neutron was also calculated for the studied alloys: the highest value was found for the alloys coded with Inconel-718 (∑R = 0.01945 cm2·g−1) and Nimocast-75 (∑R = 0.01940 cm2·g−1), and the lowest value was obtained for alloy coded MAR-302 (∑R = 0.01841 cm2·g−1). Calculated data indicate that MAR-302 and MAR-247 are superior candidates for shielding of gamma-rays, while Inconel-718 and Nimocast-75 MAR-302 are suitable for the shielding of fast neutrons. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: MCNP
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85095948465
PURE ID: 20132789
ISSN: 20763417
DOI: 10.3390/app10217680
metadata.dc.description.sponsorship: This work was funded by the Research Universiti Grant, Universiti Kebangsaan Malaysia, Geran Universiti Penyelidikan (GUP), code: 2018-134.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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