Simulation experiment for tellurium-induced intergranular cracking in oxidizing molten salt environment
Source abstract
Abstract
One user-friendly laboratory investigation method for tellurium-induced intergranular cracking has been preliminarily developed in this study. The Te exposure experiments were carried out using FLiNaK salts with NiF 2 and Cr 3Te 4 at 700 °C in GH3535 alloy tubes. Te exists in the form of intergranular segregation without the formation of surface tellurides, and Te-induced intergranular cracking can occur under unstrained conditions, which agrees with the observations in molten salt reactors. The acceleration effect of NiF 2 can be ascribed to its reaction with Cr 3Te 4 to form Te metal.
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Research context
OpenAlex topics: Nuclear Materials and Properties · Intermetallics and Advanced Alloy Properties · High Temperature Alloys and Creep
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
Show source-provided references
1. The molten salt reactor (MSR) in generation IV: overview and perspectives10.1016/j.pnucene.2014.02.014 ↗
2. Corrosion resistance of some nickel-base alloys to molten fluoride salts containing UF4 and tellurium10.1149/197606.0315PV ↗
3. J. Keiser, Status of tellurium--hastelloy N studies in molten fluoride salts, in, Oak Ridge National Lab., Tenn.(USA), 1977.10.2172/7295251 ↗
4. H. McCoy, B. McNabb, Intergranular Cracking of INOR-8 in the MSRE, in, Oak Ridge National Lab., 1972.10.2172/4581899 ↗
5. A.D. Kelmers, D.Y. Valentine, Tellurium Deposition on Hastelloy N Surfaces in an MSBR, in: L.E. McNeese (Ed.) Molten-Salt Reactor Program semiannual progress report for period ending February 28, 1975, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 1975, pp. 37–40.
6. R.E. Clausing, L. Heatherly, Examination of a Hastelloy N foil sample embrittled in the Molten-Salt Reactor Experiment, in: L.E. McNeese (Ed.) Molten-salt reactor program. Semiannual progress report for period ending February 29, 1976, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 1976.
7. Absorption effect of pure nickel on the corrosion behaviors of the GH3535 alloy in tellurium vapor10.1007/s41365-021-00976-x ↗
8. EPMA and TEM characterization of intergranular tellurium corrosion of Ni–16Mo–7Cr–4Fe superalloy10.1016/j.corsci.2015.04.017 ↗
9. Effect of yttrium on intergranular embrittlement behavior of GH3535 alloy induced by tellurium10.1016/j.corsci.2023.111091 ↗
10. Effect of Nb contents on the surface tellurization and intergranular cracking behaviors of Ni-Nb-C alloys10.1016/j.jallcom.2023.170973 ↗
11. Effect of Mn addition on the tellurium embrittlement resistance of GH3535 alloy10.1016/j.matchar.2023.113052 ↗
12. Effect of Al addition on intergranular embrittlement behavior of GH3535 alloy induced by fission product Te10.1016/j.corsci.2022.110576 ↗
13. Influence of lanthanum element on tellurium induced embrittlement of Ni-16Mo-7Cr alloy10.1016/j.corsci.2022.110360 ↗
14. On the origin of tellurium corrosion resistance of hot-rolled GH3535 alloy10.1016/j.corsci.2020.108644 ↗
15. Unexpected effect of hydroxyl radical on tellurium corrosion of the Ni-Mo-Cr-Nb based alloy10.1016/j.corsci.2020.108748 ↗
16. Effect of grain boundary carbides on the diffusion behavior of Te in Ni-16Mo-7Cr base superalloy10.1016/j.matchar.2020.110329 ↗
17. Grain-boundary corrosion of nickel-based alloy by synchrotron radiation technology, Surface
18. XAFS and SRGI-XRD studies of the local structure of tellurium corrosion of Ni–18% Cr alloy10.1007/s41365-019-0673-4 ↗
19. Influence of grain size on tellurium corrosion behaviors of GH3535 alloy10.1016/j.corsci.2018.12.007 ↗
20. Effect of Cr contents on the diffusion behavior of Te in Ni-based alloy10.1016/j.jnucmat.2017.10.062 ↗
21. Grain boundary engineering for control of tellurium diffusion in GH3535 alloy10.1016/j.jnucmat.2017.10.052 ↗
22. Effect of thermal exposure time on tellurium-induced embrittlement of Ni–16Mo–7Cr–4Fe alloy10.1007/s41365-017-0330-8 ↗
23. Local structure study of tellurium corrosion of nickel alloy by X-ray absorption spectroscopy10.1016/j.corsci.2016.03.006 ↗
24. Intergranular diffusion and embrittlement of a Ni–16Mo–7Cr alloy in Te vapor environment10.1016/j.jnucmat.2015.09.053 ↗
25. Effects of Te on intergranular embrittlement of a Ni–16Mo–7Cr alloy10.1016/j.jnucmat.2015.01.049 ↗
26. Corrosion of 316L in liquid tellurium at 551° C10.1016/j.corsci.2019.02.001 ↗
27. Mechanism of tellurium induced nickel alloy corrosion in molten LiCl-KCl salt10.1016/j.corsci.2022.110734 ↗
28. Corrosion property of Alloy 625 in Molten FLiNaK salt according to the Tellurium Concentrations10.1016/j.jnucmat.2023.154548 ↗
29. J. Brynestad, Observation of reaction in metal-tellurium-salt systems, in: L.E. McNeese (Ed.) Molten Salt Reactor Program semiannual progress report for Periods Ending August 31, 1975, 1976.
30. Effect of the [U (IV)]/[U (III)] ratio on selective chromium corrosion and tellurium intergranular cracking of Hastelloy N alloy in the fuel LiF-BeF2-UF4 salt10.1051/epjn/2019033 ↗
31. Voltammetric measurements on the [U (IV)]/[U (III)] couple and embrittlement of high nickel alloys in fuel LiF-BeF2-UF4 salt with tellurium addition in application to molten salt reactor10.1016/j.corsci.2019.108164 ↗
32. Alloys compatibility in molten salt fluorides: Kurchatov Institute related experience10.1016/j.jnucmat.2013.05.007 ↗
33. Effect of tellurium concentration on the corrosion and mechanical properties of 304 stainless steel in molten FLiNaK salt10.1016/j.corsci.2022.110913 ↗
34. Corrosion of commercial alloys in FLiNaK molten salt containing EuF3 and simulant fission product additives10.1016/j.jnucmat.2020.151994 ↗
35. Measurement of europium (III)/europium (II) couple in fluoride molten salt for redox control in a molten salt reactor concept10.1016/j.jnucmat.2017.09.027 ↗
36. Tellurium segregation-induced intergranular corrosion of GH3535 alloys in molten salt10.1016/j.corsci.2021.109944 ↗
37. D. Williams, Assessment of candidate molten salt coolants for the NGNP/NHI heat-transfer loop, in, Oak Ridge National Lab.(ORNL), Oak Ridge, TN (United States), 2006.10.2172/1360677 ↗
38. The critical role of Si doping in enhancing the stability of M6C carbides10.1016/j.jallcom.2017.09.042 ↗
39. Gehlbach · 1968
40. Corrosion behavior of GH3535 alloy in molten LiF–BeF2 salt10.1016/j.corsci.2022.110168 ↗
41. Effect of metal fluorides on the corrosion of structural materials in molten LiF-NaF-KF10.1016/j.corsci.2023.110977 ↗
42. Corrosion behavior of incoloy 800H/HT in the fluoride molten salt FLiNaK+ MF x (MF x= CrF 3, FeF 2, FeF 3 and NiF 2)10.1039/C5NJ01839K ↗
43. Compatibility of container materials with Cr in molten FLiNaK salt10.1016/j.jfluchem.2014.09.010 ↗
44. Interaction mechanisms of a Hastelloy N-316L stainless steel couple in molten LiF-NaF-KF salt10.1016/j.corsci.2019.108317 ↗
45. High‐temperature corrosion behavior of Inconel 617 with Ni‐claddings in molten FLiNaK salt, Materials and Corrosion
46. Metallic impurities induced corrosion of a Ni-26W–6Cr alloy in molten fluoride salts at 850 oC10.1016/j.corsci.2020.109079 ↗
47. First-principles study of intergranular embrittlement induced by Te in the Ni Σ 5 grain boundary10.1016/j.commatsci.2014.02.038 ↗
48. H.E. McCoy, B. McNabb, J.C. Feltner, Metallographic examination of samples exposed to tellurium containing environments, in: L.E. McNeese (Ed.) Molten-Salt Reactor Program Semi-Annual. Progress Report for Period Ending August 31, 1975 (ORNL-5078), Oak Ridge National Laboratory, Oak Ridge, Tennessee, 1976, pp. 108–119.
49. H.E. McCoy, B. McNabb, J.C. Feltner, Metallographic examination of samples exposed to tellurium containing environments, in: L.E. McNeese (Ed.) Molten-Salt Reactor Program Semi-Annual. Progress Report for Period Ending February 29, 1976 (ORNL-5132), Oak Ridge National Laboratory, Oak Ridge, 1976, pp. 100–121.