| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Tackling Metallic Structural Materials Challenges for Advanced Nuclear Reactors
|
| Presentation Title |
Effect of Molten Halide Salts on Structural Alloy Creep at 650°-750°C |
| Author(s) |
Bruce A. Pint, Rishi Pillai |
| On-Site Speaker (Planned) |
Bruce A. Pint |
| Abstract Scope |
With considerable interest in molten halide (i.e. Cl and F) salts for fission applications, a range of static and flowing salt experiments have shown relatively good salt compatibility with type 316H stainless steel at 550°-650°C. The next phase of testing is using hollow tensile specimens to conduct ~1,000 h creep tests with and without salt inside the specimens to determine if the salt is impacting the alloy mechanical properties. At 650°C, type 316H stainless steel specimens are being exposed with either purified NaCl-MgCl2 or FLiNaK salt. At higher temperatures, alloy 709 (Fe-20Cr-25Ni) specimens are being exposed to FLiNaK salt at 700°C and, at 750°C, Ni-based alloy 617 specimens are being exposed to FLiNaK salt. Initial results have shown a faster strain rate when FLiNaK salt was included for alloy 617 creep at 146 MPa. This research is sponsored by the U.S. Department of Energy, Office of Nuclear Energy. |