NSUF 18-1254: Characterization of grain boundaries of Alloy X-750 irradiated in EBR-II
The development of a quantitative relationship between microchemistry and strength of individual grain boundary (GB) has been rarely achieved. The technical objective of this RTE is to characterize GB character and GB microchemistry of nickel based alloy X-750 before and after neutron irradiation using state-of-the-art instruments for characterization of neutron-irradiated materials including Electron Backscatter Diffraction (EBSD), Transmission Electron Microscope (TEM) equipped with spatially resolved Energy Dispersive x-ray Spectroscopy (EDS)/Electron Energy Loss Spectroscopy (EELS) and Atom Probe Tomography (APT) at the Center for Advanced Energy Studies. After this RTE, the strength of the same or similar GBs will be measured using small scale tensile mechanical testing technique at Idaho National Laboratory and the relationship between GB character/microchemistry and GB strength and radiation effects on Alloy X-750 will be revealed by coupling experiment and modeling/simulation.
Additional Info
| Field | Value |
|---|---|
| Abstract | The development of a quantitative relationship between microchemistry and strength of individual grain boundary (GB) has been rarely achieved. The technical objective of this RTE is to characterize GB character and GB microchemistry of nickel based alloy X-750 before and after neutron irradiation using state-of-the-art instruments for characterization of neutron-irradiated materials including Electron Backscatter Diffraction (EBSD), Transmission Electron Microscope (TEM) equipped with spatially resolved Energy Dispersive x-ray Spectroscopy (EDS)/Electron Energy Loss Spectroscopy (EELS) and Atom Probe Tomography (APT) at the Center for Advanced Energy Studies. After this RTE, the strength of the same or similar GBs will be measured using small scale tensile mechanical testing technique at Idaho National Laboratory and the relationship between GB character/microchemistry and GB strength and radiation effects on Alloy X-750 will be revealed by coupling experiment and modeling/simulation. |
| Award Announced Date | 2018-02-01T14:18:24.897 |
| Awarded Institution | None |
| Facility | None |
| Facility Tech Lead | Alina Zackrone |
| Irradiation Facility | None |
| PI | Lingfeng He |
| PI Email | [email protected] |
| Project Type | RTE |
| RTE Number | 1254 |