Radiation induced segregation (RIS) occurred in austenitic stainless steels
was investigated to account for differences in RIS behavior under various
irradiation conditions. Measured composition profiles in austenitic stainle
ss steels irradiated by neutron in a boiling water reactor. 1 MeV electron
or GO MeV He, were analyzed by computer simulations based on the inverse-Ki
rkendall model. By using corresponding damage efficiency of each irradiatio
n as an input parameter in addition to dose rate and irradiation temperatur
e; calculations almost reproduced the measured RIS behavior. This suggested
that the damage efficiency was a useful parameter of RIS for different par
ticle irradiations. However, inconsistencies between measurements and calcu
lations appeared in the irradiation conditions at high dose and high dose r
ate at about 570 It. To account for them consistently, further studies incl
uding the effect of microstructural evolution on RIS behavior were required
.