Effect of Te on the corrosion behavior of GH3535 alloy in molten LiF-NaF-KF salt
Source abstract
Abstract
Effect of Te on the corrosion behavior of GH3535 alloy in molten LiF-NaF-KF (FLiNaK) salt at 700 ℃ was investigated. GH3535 alloy only suffered from uniform corrosion in the purified salt without Te. Results indicate that the Te in salt preferentially corrodes GH3535 grain boundaries. The alloy grains can also be corroded in the salt with Te at higher concentration. The corrosion induced by Te is mainly attributed to the reactions among Te, main composition of alloy and impurities in salt. The precipitated carbides in GH3535 alloy and the increasing concentration of Te in salt both aggregate the intergranular cracking.
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Research context
OpenAlex topics: Molten salt chemistry and electrochemical processes · Graphite, nuclear technology, radiation studies · Fusion materials and technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Chemistry and technology of molten salt reactors – history and perspectives10.1016/j.jnucmat.2006.08.008 ↗
2. The thorium molten salt reactor: moving on from the MSBR10.1016/j.pnucene.2006.07.005 ↗
3. Review of conceptual design and fundamental research of molten salt reactors in China10.1002/er.3979 ↗
4. The molten salt reactor (MSR) in generation IV: overview and perspectives10.1016/j.pnucene.2014.02.014 ↗
5. Study on dynamic characteristics of fission products in 2 MW molten salt reactor10.1007/s41365-020-0730-z ↗
6. H.E. McCoy, B. McNabb, Intergranular Cracking of INOR-8 in the MSRE, Oak Ridge National Laboratory, 1972 (Report ORNL-4829).10.2172/4581899 ↗
7. The distribution and behavior of noble metal fission products (99Mo, 103Ru, 105Rh and 132Te) in molten 2LiF-BeF2 mixtures10.1016/j.jnucmat.2022.153807 ↗
8. Compore · 1975
9. Savage · 1977
10. Liquid fuel molten salt reactors for thorium utilization10.13182/NT15-124 ↗
11. Molten salt reactors: a new beginning for an old idea10.1016/j.nucengdes.2009.12.033 ↗
12. Effects of Te on intergranular embrittlement of a Ni–16Mo–7Cr alloy10.1016/j.jnucmat.2015.01.049 ↗
13. Effect of temperature on diffusion behavior of Te into nickel10.1016/j.jnucmat.2013.06.025 ↗
14. Enhancement of Inconel 718 resistance to tellurium corrosion through cyclic dynamic microwave thermal shock10.1016/j.matlet.2022.132899 ↗
15. Effect of grain boundary carbides on the diffusion behavior of Te in Ni-16Mo-7Cr base superalloy10.1016/j.matchar.2020.110329 ↗
16. Effect of thermal exposure time on tellurium-induced embrittlement of Ni–16Mo–7Cr–4Fe alloy10.1007/s41365-017-0330-8 ↗
17. EPMA and TEM characterization of intergranular tellurium corrosion of Ni–16Mo–7Cr–4Fe superalloy10.1016/j.corsci.2015.04.017 ↗
18. Grain boundary engineering for control of tellurium diffusion in GH3535 alloy10.1016/j.jnucmat.2017.10.052 ↗
19. On the origin of tellurium corrosion resistance of hot-rolled GH3535 alloy10.1016/j.corsci.2020.108644 ↗
20. Absorption effect of pure nickel on the corrosion behaviors of the GH3535 alloy in tellurium vapor10.1007/s41365-021-00976-x ↗
21. Influence of grain size on tellurium corrosion behaviors of GH3535 alloy10.1016/j.corsci.2018.12.007 ↗
22. Intergranular diffusion and embrittlement of a Ni–16Mo–7Cr alloy in Te vapor environment10.1016/j.jnucmat.2015.09.053 ↗
23. Effect of Cr contents on the diffusion behavior of Te in Ni-based alloy10.1016/j.jnucmat.2017.10.062 ↗
24. Local structure study of tellurium corrosion of nickel alloy by X-ray absorption spectroscopy10.1016/j.corsci.2016.03.006 ↗
25. Tellurium segregation-induced intergranular corrosion of GH3535 alloys in molten salt10.1016/j.corsci.2021.109944 ↗
26. Intergranular tellurium cracking of nickel-based alloys in molten Li, Be, Th, U/F salt mixture10.1016/j.jnucmat.2013.05.001 ↗
27. Formation of ZnTe compounds by using the electrochemical ion exchange reaction in molten chloride10.1016/j.tsf.2004.11.101 ↗
28. Overview over studies of electrodeposition of Al or Al alloys from low temperature chloroaluminate molten salts10.1007/s10008-016-3428-8 ↗
29. Rosenthal · 1972
30. Rosenthal · 1973
31. Complex twin interfaces in M6C carbides10.1016/j.matlet.2019.05.020 ↗
32. First-principles study of intergranular embrittlement induced by Te in the Ni Σ 5 grain boundary10.1016/j.commatsci.2014.02.038 ↗
33. Diffusion of tellurium at nickel grain boundaries: a first-principles study10.1039/C6RA28435C ↗
34. Effect of long-term thermal exposure on microstructure and stress rupture properties of GH3535 superalloy10.1016/j.jmst.2014.07.021 ↗