Date of this Version
EPJ Web of Conferences 115, 04001 (2016)
The behavior of dislocations in unirradiated and ion-irradiated austenitic stainless steels has been observed directly by performing straining experiments in-situ in the transmission electron microscope. This has enabled direct observation of how dislocations interact with each other, with the irradiation produced obstacles and with grain boundaries. These experiments have provided insight as to the mechanisms by which dislocations annihilate the irradiation produced defects to form a channel as well as determination of the conditions that control slip transfer across a grain boundary and how it is impacted by the presence of the irradiation produced defects.