Recently, it was shown that edge dislocations were not stable sinks for vacancies. Trapping and de-trapping of vacancies occurred as a thermally-activated process. The temperature dependence of vacancy absorption coefficient of edge dislocations under irradiation was calculated here by using rate equations in Fe and Ni. The temperature dependence was almost the same in both Fe and Ni and did not depend on the damage rate between 10−10 and 10−6dpa/s. At low temperatures such as room temperature, the coefficient was low and with increasing irradiation temperatures, it had a peak (500K) and decreased.

Temperature Dependence of Dislocation Bias Factors in Metals. T.Yoshiie, K.Sato, Q.Xu: Nuclear Instruments and Methods in Physics Research B, 2009, 267[18], 2971-5