Abstract
Stainless steel (316SS) is commonly used as the cladding and structural material in sodium-cooled fast reactors (SFRs), and the molten 316SS always appears along with the molten metallic fuel during core disruptive accidents (CDAs) in SFRs. Since the research on the thermal and hydrodynamic fragmentation mechanism, and fragment size distribution characteristics of the continuous molten 316SS droplets is insufficient, the experiments of 20 g continuous molten 316SS droplets penetrating into the sodium were conducted under the wide thermohydraulic conditions in this paper. The results show that the fragmentation of the continuous 316SS droplets can be divided into three fragmentation zones of solidification and deformation zone, rapid breakage growth zone and slow breakage growth zone. Based on the analysis of the fragment size distribution and the fragment appearances, the schematic fragmentation mechanisms of the 316SS droplet are proposed under different thermohydraulic conditions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
