Estimation and Comprehensive for Radiation and Neutron Shielding of Ni-base Superalloys: Inconel 600, 601, 617, 625, 625LCF, 686, 690 and 693
Keywords:Ni-base superalloys, Gamma shielding, Neutron shielding
In this research, the radiation and neutron shielding properties of some Ni-base superalloys of Inconel 600, 601, 617, 625, 625LCF, 686, 690, and 693, were estimated. The radiation shielding effectiveness of the superalloys was estimated by determining the mass attenuation coefficient (mm), effective atomic number (Zeff), effective electron density (Nel), half value layer (HVL) and mean free path (MFP) at photon energy ranging 1 keV-100 GeV using the WinXCom computer software program. Exposure and energy absorption buildup factors (EBF and EABF) were computed at energy levels ranging from 15 keV-15 MeV up to 40 mfp deep penetration. Neutron shielding was computed by partial density. The results showed that Inconel 686 superalloy was excellent radiation shielding. This study indicates that Inconel 686 superalloy can be developed as a radiation shielding medium. While Inconel 600 had the highest fast neutron removal cross sections (SR value), meaning that Inconel 600 is better neutron shielding than the other Inconel samples.
Keywords: Ni-base superalloys, Gamma shielding, Neutron shielding
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