Fig. 1. Device schematic diagram of molten salt electrolysis1: Corundum crucible, 2: Molten salt, 3: Mo wire, 4: W rod, 5: Electrode holder, 6: C rod, 7: Reference electrode

Fig. 2. Schematic diagram of corrosion testing device1: Crucible stand, 2: Corundum crucible, 3: Samples, 4: Heating furnace inner wall

Fig. 3. Photo of Inconel 600 alloy samples

Fig. 4. Potentiostat electrolysis curve of LiCl-KCl eutectic molten salt

Fig. 5. CV curves of LiCl-KCl eutectic before and after electrolysis

Fig. 6. XRD pattern of samples (a) Uncorroded samples, (b) Samples corroded by electrolyzed salts, (c) Samples corroded by untreated salts

Fig. 7. Macroscopic corrosion morphologies of sample 1 (a) and sample 2 (b)

Fig. 8. Microscopic corrosion morphologies of sample 1 (a) and sample 2 (b)

Fig. 9. EDS mapping of sample 1 surface corroded by non-electrolyzed LiCl-KCl eutectic (color online)

Fig. 10. EDS mapping of sample 2 surface corroded by electrolyzed LiCl-KCl eutectic (color online)

Fig. 11. SEM image and EDS mapping and EDS points of sample 1 corroded by non electrolyzed LiCl-KCl eutectic (color online)

Fig. 12. SEM image and EDS mapping of sample 2 corroded by electrolyzed LiCl-KCl eutectic (color online)