Effects of the nickel, copper, silver and tin coating on S235JR, 21NiCrMo2, C45 and 42CrMo4 steels for radiation shielding performance
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Date
2021-07-01
Journal Title
Journal ISSN
Volume Title
Publisher
Celal Bayar Üniversitesi
Abstract
In this study, S235JR (1.0037), 21NiCrMo2 (1.6523), C45 (1.0503), 42CrMo4 (1.7225) steels were
coated with nickel, copper, silver, and tin. Then, the radiation shielding performances of the uncoated and
coated steels were investigated. The steels were firstly designed by the coating processes via electrolytic
plating method on behalf of Ni, Cu, Ag and Sn metals. The samples were then irradiated by radioactive
sources for transmission of the gamma rays at photon energies in the range 81–383 keV photon energies
to measure linear and mass attenuation coefficients (LAC-µ, MAC-µ/) of the pure and coated steels by
Ni, Cu, Ag and Sn. Half and tenth value of layers (HVL and TVL) of investigated materials were then
calculated at the same studied photon energies. The materials were compared with each other as well as
with some shielding concretes in terms of mean free paths (MFP) wherever possible. The coated steels
were found to be better shielding materials than the concretes due to lower MFP values they had, and they
showed also better shielding than reference materials up to 35.31% relative difference in MFP. It was
concluded that coating processes improved the shielding properties of the steels.
Description
Keywords
Coating, radiation shielding, steel