Affiliation:
1. Corrosion Science and Technology Division, Metallurgy and Materials Group , Indira Gandhi Centre for Atomic Research, A CI of Homi Bhabha National Institute , Kalpakkam 603102 , Tamilnadu , India
Abstract
Abstract
High temperature molten salt corrosion is of utmost importance for selecting and qualifying structural materials for critical applications. Pyrochemical reprocessing of spent metallic fuels of the future fast breeder reactors in India is widely considered. One of the main processes of pyrochemical reprocessing is electrorefining. Electrorefining is generally conducted in LiCl–KCl molten salt at 500–600 °C under an inert atmosphere. Research groups worldwide are involved in developing corrosion resistant materials and investigating the corrosion behaviour of various structural materials for LiCl–KCl applications under different environments. A wide variety of materials, including metals, alloys, intermetallics, single crystals, glass and ceramics, have been investigated in molten LiCl–KCl salt. This review focuses mainly on the corrosion assessment of materials for LiCl–KCl application; a complete literature review with emphasis on the corrosion issues of materials is provided. This paper reviews the corrosion issues of metals and alloys in molten salts and the selection criteria of corrosion-resistant materials for molten salts. Understanding the molten salt corrosion mechanisms and future research scope are also discussed.
Subject
General Materials Science,General Chemical Engineering,General Chemistry
Reference102 articles.
1. Ackerman, J.P. (1991). Chemical basis for pyrochemical reprocessing of nuclear fuel. Ind. Eng. Chem. Res. 30: 5, https://doi.org/10.1021/ie00049a022.
2. Bandyopadhyay, G. (1981). Ceramic-coated positive current collectors for Li-Al/LiCl-KCL/FeS2 batteries. J. Electrochem. Soc. 128: 2545–2552, https://doi.org/10.1149/1.2127288.
3. Banerjee, S. and Gupta, H.P. (2017). The evolution of the Indian nuclear power programme. Prog. Nucl. Energy 101: 4–18, https://doi.org/10.1016/j.pnucene.2017.02.008.
4. Barbe, M., Rameau, J.J., and Barbier, M.J. (1974). Electrochemical corrosion of copper, aluminum, and an Al-Cu (82. 7 at.%Al) alloy in molten eutectic LiCl-KCl-NaCl at 450 degree C. Rev. Int. Hautes Temp. Refract. 11: 81–89.
5. Barnett, R. (2017). High temperature corrosion testing of engineering alloys in contact with molten chlorides. Weld. Cut. 16: 35–36.