https://doi.org/10.1051/epjconf/202124709022
INTERDIFFUSION OF Mo AND W UNDER IN-PILE IRRADIATION CONDITIONS
a NRC “Kurchatov Institute”, Academician Kurchatov Square 1, Moscow 123182 Russia
asi.kiae@gmail.com
Churin_VA@nrcki.ru
Published online: 22 February 2021
The study has established that reactor radiation leads to a significant increase of interdiffusion coefficients in a Mo-W alloy compared to thermally activated diffusion at temperatures of ~1500°С. Furthermore, a weakening of their concentration dependence is observed. The approximation procedure developed in this work allowed approximating experimental data for each sample using variation of only one parameter. It has been demonstrated that the interaction of molybdenum and tungsten nuclei with fast neutrons as well as with hard gamma quanta may cause the observed diffusion effects.
Key words: Interdiffusion / fuel cladding / irradiation / neutron flux / photoeffect / Compton effect / electron-positron pair production
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
