Influence of Mo, Si, P, C, Ti, Cr, Zr and Ten Trace Elements on the Neutron-Induced Swelling of AISI 316 Stainless Steel

摘要

The individual and synergistic influences of seven major and ten minor solutes on the swelling of 316 stainless steel were investigated in an irradiation experiment conducted in EBR-II. All elements exert their influence on the duration of the transient regime of swelling, through their effect on both vacancy diffusivity and precipitate evolution, often causing a complex response with increasing solute level. On a per atom basis, phosphorus is the most effective and consistent suppressor of swelling. Trace elements were found to have no significant effect. No combination of these elements appears to suppress the tendency of this steel to swell at -1%/dpa following the transient regime. 21 refs., 6 figs. (ERA citation 13:017907)