About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
N-17: Tellurium Cracking Study in Inconel 617 |
Author(s) |
Ryan Gordon, Stephen Raiman, Lesley Frame |
On-Site Speaker (Planned) |
Ryan Gordon |
Abstract Scope |
Tellurium, a byproduct of fission in molten salt reactors, has been shown to cause or amplify cracking in Alloy N, a low-Cr Ni-based alloy. Limited research has shown tellurium impacts mechanical properties and may cause embrittlement in 316 stainless steel and other nickel alloys. Inconel 617 is a nickel-based alloy which has just recently been approved for use in nuclear environments. Tensile tests will be conducted to determine if tellurium also causes embrittlement and impacts the mechanical properties of Inconel 617. Tensile samples were heated in a tellurium rich atmosphere and strained until failure. The microstructures were analyzed, and stress strain curves were created to compare the mechanical properties of samples exposed to tellurium with samples that were not. This research shows the initial findings to determine whether tellurium-based cracking is a degradation mode of concern in molten salt reactors. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, High-Temperature Materials, Mechanical Properties |