About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
Presentation Title |
Environmentally Assisted Cracking of Nickel-Based Alloys in Molten Salts Containing Tellurium |
Author(s) |
Mohammad Umar Farooq Khan, Lesley Frame, Stephen Raiman |
On-Site Speaker (Planned) |
Mohammad Umar Farooq Khan |
Abstract Scope |
Tellurium, a fission product in thermal spectrum molten salt reactors, is known to cause embrittlement and cracking of some structural alloys. Grain boundary engineering is a potential method for mitigating cracking of salt-facing alloys. For this work, varying coincidence site lattice (CSL) boundaries were generated by applying different degrees of cold working and heat treatment to IN617. The heat treatment temperature and time were devised to maximize the low CSL boundaries for varied cold work percentages. Samples were then exposed to FLiNaK salt containing Te at 800 °C for 100 hours. Samples were characterized by optical and electron microscopy. This talk will discuss the influence of grain boundary characteristics on corrosive attack and fission product infiltration in molten fluoride salts. |
Proceedings Inclusion? |
Planned: |