|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Nuclear Energy
||In-situ Observation on the Oxides Stability under Laser and/or Electron Beams Irradiations in 9Cr-ODS Steel
||Wang Hui, Yang Zhanbing, Yang Subing, Watanabe Seiichi, Shibayama Tamaki
|On-Site Speaker (Planned)
Oxide-dispersion-strengthened (ODS) steels have been considered as the candidate materials for Gen.Ⅳ fission reactor core components and fusion reactor first wall with their excellent radiation resistance and high temperature mechanical properties. In this paper, three kinds of irradiation, electron irradiation, laser-electron sequential irradiation and laser-electron dual-beam simultaneous irradiation, were carried out using a high-voltage electron microscope (HVEM) equipped with a laser head (Laser-HVEM) at temperatures 725 K, 775 K and 825 K to investigate the changes of oxides in ODS steel by in-situ observation. The results showed that oxides size have a decrease trend with the increase of irradiation dose, and the decrease rates of oxides vary under different temperatures and irradiation methods. Coherency between oxides and the matrix are confirmed by high resolution transmission electron microscope (HRTEM), and microscopic changes of oxides under different irradiation conditions are compared for further analysis.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)