NSUF 18-1547: Synchrotron XRD characterization of long range order in Ni-Cr alloys formed by isothermal aging or irradiation
The objectives of this work are to characterize the phase fraction of the long range ordered (LRO) Ni2Cr phase that develops when aged at temperatures below 500°C or when irradiated. This data will allow us to correlate phase fraction transformed to mechanical property degradation (measured via hardness and tensile testing). This correlation will be used to develop predictive models to estimate mechanical properties over the service lifetime of nuclear components. Additionally, we will perform in situ studies on heating to identify the critical temperature as a function of alloy concentration. This information will help to develop low temperature phase diagrams for the Ni-Cr-Fe system where data is lacking.
Información Adicional
| Campo | Valor |
|---|---|
| Awarded Institution | Oregon State University |
| Embargo End Date | 2024-05-09 |
| Facility Tech Lead | Alina Montrose, Mukesh Bachhav, Simerjeet Gill |
| NSUF Call | FY 2018 RTE 3rd Call |
| PI | Julie Tucker |
| Project Member | Dr. Julie Tucker, Associate Professor - Oregon State University (https://orcid.org/0000-0002-0886-1580) |
| Project Notes | Awarded on 09/17/2018 |
| Project Type | RTE |
| Publication | Effect of stoichiometry on the evolution of thermally annealed long-range ordering in Ni-Cr alloys David Sprouster, Fei Teng, George Young, Jia-Hong Ke, Julie Tucker Materialia 8 2019-09-22 https://doi.org/10.1016/j.mtla.2019.100453 |
| Publication | Effect of Thermal And Irradiation-induced Long Range Ordering in Ni-Cr Model Alloys Fei Teng, David Sprouster, Peter Hosemann, Li-Jen Yu, Emmanuelle Marquis, Julie Tucker NuMat 2018-10-14 - 2018-10-18 |
| Publication | The formation and evolution of Ni2Cr precipitates in Ni–Cr model alloys as a function of stoichiometry characterized by synchrotron x-ray diffraction Julie Tucker, David Sprouster Materials Science & Engineering 856 2020-10-20 https://doi.org/10.1016/j.msea.2022.143930 |
| Publication | Role of Fe in long-range ordered Ni2Cr precipitates in Ni-Cr-Fe model alloys during isothermal aging David Sprouster, Julie Tucker Materials Science and Engineering: A 877 2023-05-30 https://doi.org/10.1016/j.msea.2023.145162 |
| RTE Number | 1547 |