Effects of NiCl2 and FeCl2 additives on the anodic dissolution behaviours of Inconel 600 in molten LiCl–KCl salts
Source abstract
Abstract
The anodic dissolution behaviour of Inconel 600 must be elucidated to design an efficient decontamination process for used nuclear steam generator tubes with radioactive nuclide depositions in their surface microcracks. We investigated the effects of NiCl 2 and FeCl 2 additives in LiCl–KCl eutectic salts on the microstructural changes in Inconel 600 during electrolytic decontamination . A Cr–Fe depletion layer formed on Inconel 600 via Ni reduction at the position where alloying elements oxidised. In the FeCl 2 -added salt, the selective dissolution of active alloying elements through the grain boundary produced a cavity-cluster layer whose shape was changed using applied electrochemical methods .
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Molten salt chemistry and electrochemical processes · Nuclear Materials and Properties · Nuclear reactor physics and engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. PWR heat exchanger tube defects: trends, signatures and diagnostic techniques10.1016/j.pnucene.2018.12.017 ↗
2. Advanced microstructural characterization of the intergranular oxidation of alloy 60010.1016/j.corsci.2015.08.010 ↗
3. Microstructure and microdeformation effects on IGSCC of Alloy 600 steam generator tubing10.5006/1.3584948 ↗
4. Electrochemical oxidation of Fe–Ni alloys in cryolite–alumina molten salts at high temperature10.1149/2.0501904jes ↗
5. Decontamination and recovery of a nuclear facility to allow continued operation10.1093/rpd/ncw296 ↗
6. Simulating the erosion modelling of pipes used in nuclear power plants in terms of physical decontamination10.1016/j.pnucene.2022.104284 ↗
7. Separation behavior of nickel and cobalt in a LiCl-KCl-NiCl2 molten salt by electrorefining process10.1016/j.jelechem.2020.114175 ↗
8. Overview of steam generator tube degradation and integrity issues10.1016/S0029-5493(99)00167-3 ↗
9. Corrosion behavior of stainless and low-chromium steels and IN625 in molten nitrate salts at 600 ℃10.1016/j.solmat.2015.08.011 ↗
10. Corrosion aspects of Ni–Cr–Fe based and Ni–Cu based steam generator tube materials10.1016/j.jnucmat.2009.06.020 ↗
11. Corrosion of alloys in a chloride molten salt (NaCl-LiCl) for solar thermal technologies10.1016/j.solmat.2016.05.052 ↗
12. Corrosion behaviour of stainless steels and a single crystal superalloy in a ternary LiCl−KCl−CsCl molten salt10.1016/j.corsci.2014.09.009 ↗
13. Assessment of the radiation impact of steam generator dismantling on the workers, public and environment10.1016/j.pnucene.2016.05.003 ↗
14. The analysis of management of radioactive waste arisen from steam generator’s dismantling from radiological and economical point of view10.1016/j.pnucene.2017.07.007 ↗
15. H. Ocken, Decontamination Handbook, EPRI Report TR-112352, 1999.
16. Study of transient events during the full-system chemical decontamination operation of the Kori-1 nuclear power plant10.1016/j.anucene.2022.109164 ↗
17. Chemical, biological, radiological, and nuclear decontamination: recent trends and future perspective10.4103/0975-7406.68505 ↗
18. Experience in decontamination of naval reactor plants10.1080/00295450.2019.1693216 ↗
19. SCC analysis of Alloy 600 tubes from a retired steam generator10.1016/j.jnucmat.2013.04.061 ↗
20. Leak behavior of SCC degraded steam generator tubings of nuclear power plant10.1016/j.nucengdes.2005.06.013 ↗
21. Abrasive blasting technology for decontamination of the inner surface of steam generator tubes10.5516/NET.2011.43.5.469 ↗
22. Effects of chemical compounds on the stress corrosion cracking of steam generator tubing materials in a caustic solution10.1016/j.jnucmat.2005.01.018 ↗
23. Electrorefining of zirconium from zircaloy-4 cladding hulls in LiCl-KCl molten salts10.1149/2.012208jes ↗
24. A state-of-the-art review of radioactive decontamination technologies: facing the upcoming wave of decommissioning and dismantling of nuclear facilities10.3390/su14074021 ↗
25. Separation of Zr from Zr-2.5Nb by electrorefining in LiCl-KCl for volumetric decontamination of CANDU pressure tube10.3390/app11093790 ↗
26. Purification of nuclear grade Zr scrap as the high purity dense Zr deposits from Zirlo scrap by electrorefining in LiF−KF−ZrF4 molten fluorides10.1016/j.jnucmat.2013.01.310 ↗
27. Purification of used eutectic (LiCl−KCl) salt electrolyte from pyroprocessing10.1016/j.jnucmat.2013.01.344 ↗
28. Separation of Cs and Sr from LiCl-KCl eutectic salt via a zone-refining process for pyroprocessing waste salt minimization10.1016/j.jnucmat.2017.04.036 ↗
29. Selective reduction of active metal chlorides from molten LiCl-KCl using lithium drawdown10.5516/NET.06.2011.010 ↗
30. Molten salt applications in materials processing10.1016/j.jpcs.2004.06.049 ↗
31. B. Ooms, I. Verwaest, F. Legee, J.-G. Nokhamzon, M. Pieraccini, P. Poncet, N. Franzen, T. Vignaroli, B. Herschend, T. Benest, Recycling and Reuse of Materials Arising from the Decommissioning of Nuclear Facilities. A Report by the NEA Cooperative Program on Decommissioning, in: Radioactive Waste Management, Organization for Economic Co-operation and Development Publishing, Paris, National Environment Agency – Singapore, 2017.
32. Electrochemical performance of Ni20Cr coatings applied by combustion powder spray in ZnCl2-KCl molten salts10.1016/S1452-3981(23)13401-8 ↗
33. Corrosion assessment of 9Cr-1Mo steel in molten LiCl-KCl eutectic salt by electrochemical methods10.1016/j.jnucmat.2018.11.014 ↗
34. Corrosion of stainless steel 316 in eutectic molten salts for thermal energy storage10.1016/j.solener.2018.03.053 ↗
35. Proposal for the management strategy of metallic waste from the decommissioning of Kori Unit 1 by using melting and segmentation technology10.1016/j.anucene.2017.06.056 ↗
36. A mechanistic study of SCC in Alloy 600 through high-resolution characterization10.1016/j.corsci.2018.01.004 ↗
37. Characterization of the crack initiation and propagation in Alloy 600 with a cold-worked surface10.1016/j.corsci.2019.03.014 ↗
38. Effect of a chemical decontamination procedure on the corrosion state of the heat exchanger tubes of steam generators10.1016/j.corsci.2005.09.008 ↗
39. Spectroelectrochemical behavior of Cr, Fe, Co, and Ni in LiCl-KCl molten salt for decontaminating radioactive metallic wastes10.1149/1945-7111/abdc7e ↗
40. Existing and potential decontamination methods for radioactively contaminated metals-A Review10.1016/j.pnucene.2021.103854 ↗
41. Electrochemical study on the corrosion behaviors of 316 SS in HITEC molten salt at different temperatures10.1016/j.solmat.2018.06.044 ↗
42. Electrorefining of nickel from nickel–chromium alloy in molten LiCl−KCl10.1007/s41365-019-0656-5 ↗