Abstract

The corrosion and Te embrittlement behaviors of Ni-Mo-Cr-Nb based alloy in the Te-containing molten salts have been investigated as compared with the standard GH3535 alloy. Nb is more resistant to molten salt dissolution than Cr due to the less negative Gibbs formation energy of fluoride and the more sluggish lattice diffusion. Furthermore, it was verified the Ni-Mo-Cr-Nb alloy possesses the obvious better Te embrittlement resistance than GH3535 alloy. Our results confirmed that Ni-Mo-Cr-Nb alloy is one of the most promising candidate materials in molten salt reactors.

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