|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Applications Utilizing Irradiation and Integrated Modeling
||Rapid Investigation of Irradiation Temperature Sensitivity Using Charged Particles
||Andrew James London, Chris Hardie, Joven J. H. Lim, Tonci Tadić
|On-Site Speaker (Planned)
||Andrew James London
In service, materials experience neutron irradiation over a wide range of temperatures. The evolution of irradiation damage is particularly sensitive to the material’s temperature. Therefore, there is a need to develop, evaluate and screen materials for these sensitivities. Experimental validation of the mechanisms of irradiation damage is also required with high temperature fidelity. Ion irradiation can quickly reproduce most features of the damage caused by high-energy neutrons. We report the development of a new technique which uses ion irradiation and linear thermal gradient to produce a wealth of data over a range of irradiation temperatures from a single irradiation experiment. We applied this new technique to an age hardened CuCrZr alloy, Fe-Cr alloys and Fe9Cr steels. Nanoindentation revealed the mechanical response as a function of irradiation temperature and the microstructure was characterized using site-specific microscopy. A wide range of responses were quantified with high temperature accuracy at moderate irradiation doses.