Synergistic Effects in Reduced-Activation Martensitic Steel Under Single and Sequential Helium/Hydrogen Ion Irradiation

• DOI: 10.13182/fst13-714
• Publication Date: 2014-08-26T21:22:21Z
• Authors: Jihong Chen; Liping Guo; Fengfeng Luo; Tiecheng Li; Yaoyao Ren; Jinping Suo
• Keywords: Helium atom

Single-beam (He+ or H+) and sequential-beam (He+/H+ H+/He+) irradiation of reduced-activation martensitic steels at 450°C was carried out to investigate helium/hydrogen synergistic effects on the microstructure steels. After helium implantation, a very low density bubbles observed. No void observed after hydrogen implantation. For He+/H+ irradiation, number increased rapidly dose, average size higher dose. Helium were also found in H+/He+ irradiated specimen, but its swelling smaller than that for sequential conditions. It concluded effect atoms nucleation growth may enhance diffusion helium-atom/helium-vacancy clusters. Hydrogen can increase bubbles, while retention form He-H-vacancy complexes.