Abstract
Hot-rolled Ni-201/Inconel 617 bimetal composite plate with excellent high-temperature strength has acquired significant attention in molten salt reactors (MSRs). To evaluate its potential applications, this alloy was irradiated by He ions at 650, 750, and 850°C to study their irradiation performance, especially the hot-rolled interface. The scanning electron microscope (SEM) shows that some precipitates distribute along the micro-scale hot-rolled interface. The transmission electron microscopy (TEM) results indicate that the thickness of alloy elements diffusion layer around the interface increase with the increasing temperature, which can enhance their combination. Additionally, the lower helium swelling values are observed in the hot-rolled interface, which suggests that the hot-rolled interface has better resistance to swelling. The presence of TiN/Cr23C6 has a stronger ability to trap He atoms and inhibit their diffusion to the hot-rolled interface, which can improve the swelling resistance of the interface. The variation of nanohardness around the hot-rolled interface after irradiation reveals that the hot-rolled interface exhibits better resistance to irradiation-induced hardness than Inconel 617 side. Therefore, Ni/Inconel 617 alloy with promising resistance to swelling has a great potential to function for high-temperature MSRs.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.