About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Inconel 617 Corrosion Study in Molten NaF-KF-UF4-UF3 Salts |
Author(s) |
Qiufeng Yang, Jinsuo Zhang |
On-Site Speaker (Planned) |
Qiufeng Yang |
Abstract Scope |
The corrosion of structural materials directly contacted with molten salt media at high temperature is one of the major concerns for the application of molten salts in various fields, such as molten salt reactor and hydrogen production facility. Inconel 617 is among few alloys that demonstrate good corrosion resistance performance at high temperature (650-850℃) for long-term use in molten fluoride salts. In this work, static corrosion tests were conducted by immersing Inconel 617 in molten NaF-KF-UF4-UF3 salts at 800℃. The corrosion rate was estimated by measuring the major corrosion product metal elements in the salts before and after tests using ICP-MS analysis. The crystal phases of the corrosion products were characterized by X-Ray diffraction. Moreover, the morphology and microstructure of the Inconel 617 samples after corrosion tests were analyzed using SEM-EDS as well to further understand the intergranular corrosion in the alloy. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, High-Temperature Materials, Copper / Nickel / Cobalt |