|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors V
||Precipitation in 316 Stainless Steels under Irradiation in Light Water Reactor Conditions
||Mahmood Mamivand, Ying Yang, Dane Morgan
|On-Site Speaker (Planned)
We combine the Cluster Dynamics and classical nucleation theory to provide insights into precipitation behavior of 316 stainless steels under light water reactors conditions. The Cluster Dynamics model captures the evolution of defects clustering and provides single vacancy concentrations, which are then used to predict radiation enhanced diffusion in the precipitation model. For precipitation, a numerical model based on classical nucleation theory and the thermodynamic extremum principle along with the OCTANT (ORNL Computational Thermodynamics for Applied Nuclear Technology) thermodynamic database is used. We benchmark the model against available experimental data at fast reactor conditions (9.4e-7 dpa/s and 390 °C) and then use the model to predict the phase instability of CW 316 SS under light water reactor (LWR) extended life conditions (7e-8 dpa/s and 275 °C).
||Planned: A print-only volume