|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation Mechanisms
||L-3: Displacement Rate and Temperature Equivalence in Stochastic Cluster Dynamics Simulations of Irradiated Pure alpha-Fe
||Aaron Dunn, Brittany Muntifering, Remi Dingreville, Khalid Hattar, Laurent Capolungo
|On-Site Speaker (Planned)
Charged particle irradiation is a frequently used experimental tool to study damage accumulation in metals expected during neutron irradiation. Understanding the correspondence between displacement rate and temperature is one of several factors that must be taken into account in order to design experiments that produce equivalent damage accumulation to neutron damage conditions. In this study, spatially resolved stochastic cluster dynamics (SRSCD) is used to simulate damage evolution in alpha-Fe and find displacement rate/temperature pairs under `target' and `proxy' conditions for which the local distribution of vacancies and vacancy clusters is the same as a function of displacement damage. Results are presented for Frenkel pair irradiation and displacement cascade damage in thin films and bulk alpha-Fe. The methodology presented in this study allows for a first-order prediction of the temperature at which ion irradiation experiments (`proxy' conditions) should take place in order to approximate neutron irradiation (`target' conditions).
||Planned: Supplemental Proceedings volume