Influence of neutron irradiation on deformability and fracture micromechanisms of titanium α-alloys

The deformability and fracture appearance of neutron irradiated Ti–Zr alloy were investigated. It was shown that irradiation at 200–250°C resulted in a drastic decrease of uniform elongation. The material irradiated at 350°C and over was characterized by high deformability. The dimple ductile transgranular fracture was found to be typical for the examined material both in initial state and after the low temperature irradiation. Elements of ductile intergranular fracture were observed in the material after neutron irradiation at 400°C.