[1D05-08] Corrosion

[1D07] Corrosion behavior of Ni-based alloy in molten FLiNaK salt as a fundamental research on Molten Salt Reactors

*Koji Ogasawara¹, Yuma Sekiguchi¹, Takayuki Terai¹, Hiroshi Kawamura², Kunihiko Tsuchiya³, Takashi Watanabe⁴ (1. The Univ. of Tokyo, 2. Chiyoda Technol, 3. JAEA, 4. NIFS)

Keywords:Molten Salt Reactor, Ni-based alloy, Corrosion, FLiNaK, Reactor material

As a fundamental experiment for Molten Salt Reactors, Ni-based alloys(NCF 600) considered as reactor structural material were corroded with molten FLiNaK salt. After the experiment was done at 650℃, metals were observed with SEM/EDX. Overall, Cr and Fe were dissolved, and some cavities were seen near the surfaces.