Specimens were irradiated with 2MeV electrons at about 90K. The resultant defect structures at room temperature were studied by using X-ray scattering methods and synchrotron radiation. In the Ni, and dilute Ni alloys, the major defects were vacancy loops with an average size of 0.5 to 0.7nm. A larger number of vacancy loops existed in the alloys than in the pure Ni. This was explained in terms of solute atoms causing an increase in the probability of loop nucleation.

Diffuse X-Ray Scattering Studies of Radiation Defects in Ni and Dilute Ni Alloys. H.Yuya, H.Maeta, H.Ohtsuka, N.Matsumoto, H.Sugai, A.Iwase, T.Matsui, T.Suzuki, M.Jinchoh, K.Yamakawa: Journal of Nuclear Materials, 1999, 271-272, 7-10