Mechanical Properties of Neutron-Irradiated Armco Iron upon Plastic Deformation at Elevated Temperatures

The effect of neutron irradiation on the mechanical properties of commercially pure iron upon plastic deformation at elevated temperatures has been studied. The interaction of impurity atoms with radiation-induced defects has been found to suppress dynamic strain aging. A significant decrease in plasticity due to blue brittleness has not been observed in the samples irradiated by neutrons. High-energy particles have also been revealed to increase the plasticity of irradiated Armco iron and the number of microstructural deformation mechanisms during plastic flow at elevated temperatures.