2020 journal article

Dislocation loop evolution in F/M steel T91 under in-situ ion irradiation: Influence of the presence of initial dislocations

JOURNAL OF NUCLEAR MATERIALS, 540.

By: C. Zheng n & D. Kaoumi n

co-author countries: United States of America 🇺🇸
author keywords: In-situ transmission electron microscopy (TEM); Ion irradiation; Ferritic/martensitic steel T91
Source: Web Of Science
Added: October 26, 2020

Ferritic/Martensitic (F/M) steel T91 was irradiated in-situ to 4 and 10 dpa at 470 °C using 1 MeV Kr2+. The microstructure evolution under irradiation was followed and characterized by in-situ Transmission Electron Microscopy (TEM), in terms of dislocation loop Burgers vector, average size and density as a function of dose. Furthermore, the influence of the presence of dislocations in the pre-irradiated matrix was investigated by comparing the radiation induced defect evolution in grains with and without initial dislocations.