The microstructures of previously deformed specimens of a high-Ni alloy, with 4 levels of initial dislocation density, were investigated before and after irradiation at 370 to 400C using 3 displacement rates. The network dislocation density, dislocation loop radius and loop number density were determined by means of X-ray line profile analysis and transmission electron microscopy. The dependence of dislocation structure parameters upon the irradiation conditions and the initial network density was found.

R.B.Grabova, V.K.Gorbatov, Z.E.Ostrovsky, R.A.Yuskaev: Journal of Nuclear Materials, 1997, 240[3], 229-35