| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Materials for Nuclear Applications
|
| Presentation Title |
Combined Use of In-situ and Ex-situ TEM to Characterize Irradiation Induced Dislocation Loops in F/M Steels for Nuclear Applications |
| Author(s) |
Djamel Kaoumi |
| On-Site Speaker (Planned) |
Djamel Kaoumi |
| Abstract Scope |
The use of ion irradiation coupled with in-situ TEM can be a powerful tool to study irradiation induced microstructure evolution. However because of possible thin-foil effects, it is useful if not necessary to compare with irradiations done in bulk samples. For that matter, TEM samples of F/M steel HT9 irradiated to 20 dpa at temperatures between 400°C and 470°C, in-situ, in a TEM with 1 MeV Kr ions will be compared with bulk irradiations of the same alloy using 5 MeV Fe2+ ions to similar doses of 20 dpa at similar temperatures. Focus will be put on understanding the development of irradiation induced dislocation loops in such F/M steels (HT9 and T91) as a function of dose and temperature in terms of loop density and burgers vector. Overall the presentation will illustrate how the combined used of in-situ and ex-situ characterization leads to a better understanding of irradiation induced microstructures. |