Effect of Alloying Elements on Iradiation Stability of Iron Alloys and Low-Alloy Steels

摘要

Investigated is the effect of alloying elements, i.e. carbon, manganese, chromium, nickel, molybdenum, on radiation hardening and embrittlement of low-alloyed steels which are used for pressure vessels of nuclear reactors. Samples were irradiated in containers of the VVR-S reactor. The experiments were carried out at the irradiation temperature not higher than 100 deg C. It is shown that with the growth of manganese and nickel content in alloys, radiation hardening and embrittlement constants increase. The mechanism of radiation hardening of alpha -iron alloys is proposed. The results obtained may be used while choosing the content of certain elements in steels. (Atomindex citation 10:458445)