Residual resistivity, positron annihilation and nuclear reaction methods were used to examine the interaction of D and T with defects that were produced by electron- neutron- or ion-irradiation and plastic deformation. It was found that vacancies, dislocations and 3-dimensional vacancy clusters tended to capture H. Vacancy clusters were formed in the presence of D and T at room temperature, when single vacancies were immobile. The type of isotope determined the configuration of the clusters. Atoms of H interacted with interstitial atoms at 150K. The segregation of D occurred under irradiation with D ions.

The Interaction of Deuterium and Tritium with Radiation and Other Defects in Austenitic Steel and Nickel. V.L.Arbuzov, G.A.Raspopova, S.E.Danilov, A.P.Druzhkov, Y.N.Zouev: Journal of Nuclear Materials, 2000, 283-287, 849-53