Влияние электролитического наводораживания на деформационное поведение циркониевого сплава Э-125

The paper investigates hydrogen accumulation in surface layers of zirconium alloy Zr 2.5 % Nb. It is shown that electrolytic hydrogenation leads to an increase in microhardness and decrease in elastic modulus of the surface layer. The hydrogenated layer causes yield stress growth and considerable plasticity reduction of loaded specimens. Subsequent X-irradiation makes hydrogen leave the surface layer of the zirconium alloy and provokes partial recovery of its mechanical characteristics.