Journal ArticleDOI
Corrosion Behavior of Candidate Materials in Molten LiCl-KCl Salt Under Argon Atmosphere
TLDR
In this paper, the corrosion behavior of candidate materials like 2.25Cr-1Mo steel (UNS K21590), 9 Cr-1 Mo steel (NCM), Ni-based alloy 690 (N 06690), Ni based alloy 600 (NCN N 06600), Nibased alloy 625 (NCS N06625), and Ni based alloys were evaluated under ultrahighpurity argon atmosphere.Abstract:
Pyrochemical reprocessing involves the use of molten LiCl-KCl (lithium chloride-potassium chloride) eutectic salt at 773 K for the recovery of uranium and plutonium from spent metallic fuel of fast breeder reactors. The materials selected for such corrosive environments should withstand high temperatures and at the same time offer good corrosion resistance. The present work discusses the corrosion behavior of candidate materials like 2.25Cr-1Mo steel (UNS K21590), 9Cr-1 Mo steel (UNS K90941), Ni-based alloy 600 (UNS N06600), Ni-based alloy 625 (UNS N06625), and Ni-based alloy 690 (UNS N06690) in molten LiCl-KCl eutectic salt at 873 K for various durations under ultrahigh-purity argon atmosphere. Corrosion behavior of partially stabilized zirconia (PSZ) coating on candidate materials also was evaluated. Weight-loss results indicated that the corrosion resistance of the materials increased in the following order: 2.25Cr-1Mo > 9Cr-1 Mo > Ni-based alloys > PSZ coating. PSZ-coated specimens showed better corro...read more
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Concentrating Solar Power Gen3 Demonstration Roadmap
Journal ArticleDOI
Corrosion in the molten fluoride and chloride salts and materials development for nuclear applications
TL;DR: In this paper, a comprehensive approach covering all relevant work in the field of corrosion data accumulated since the 1950s to date, major corrosion problems and corresponding mechanisms, metallurgical factors, historical development of corrosion resistant alloys and recent attempts are also reviewed.
Journal ArticleDOI
Corrosion Behavior of Structural Materials in LiCl-KCl Molten Salt by Thermogravimetric Study
Ch. Jagadeeswara Rao,A. Ravi Shankar,P.K. Ajikumar,M. Kamruddin,C. Mallika,U. Kamachi Mudali +5 more
TL;DR: In this article, the corrosion behavior of the candidate materials stainless steel (SS) 410, alloy 600 and 9Cr-1Mo (9% chromium and 1% molybdenum) steel was investigated in molten lithium chloride-potassium chloride (LiCl-KCl) salt by thermogravimetric studies under inert and reactive atmospheres.
Journal ArticleDOI
Molten salt corrosion behavior of structural materials in LiCl-KCl-UCl3 by thermogravimetric study
TL;DR: In this article, the corrosion behavior of the candidate materials of stainless steel (SS) 410, 2.25Cr-1Mo and 9Cr- 1Mo steels was investigated in molten LiCl-KCl-UCl3 salt by thermogravimetric analysis under inert and reactive atmospheres at 500 and 600
Journal ArticleDOI
Corrosion assessment of 9Cr-1Mo steel in molten LiCl-KCl eutectic salt by electrochemical methods
TL;DR: In this paper, the electrochemical impedance spectroscopy (EIS) was used to evaluate and monitor the corrosion of 9Cr-1Mo steel in LiCl-KCl molten salt under inert argon atmosphere.
References
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Journal ArticleDOI
Development of pyroprocessing technology
TL;DR: With only the addition of head-end processing steps, the pyroprocess can be applied with equal success to fuel types other than metal, enabling a symbiotic system wherein the IFR can be used to fission the actinide elements in spent nuclear fuel from other types of reactor.
Journal ArticleDOI
High temperature corrosion of coatings and boiler steels below chlorine-containing salt deposits
TL;DR: In this paper, high temperature corrosion tests were performed on low-alloyferritic steel and austenitic stainless steel, five high velocityoxy -fuel (HVOF) coatings, a laser cladding, and a diffusion chromized steel.
Journal ArticleDOI
Electrorefining of uranium and plutonium - A literature review
TL;DR: A comprehensive review of the literature on uranium and plutonium electrorefining in molten salts is given in this paper, which covers work published from 1943 to November 1991 and discusses electrodeposition and electrodissolution at solid and liquid metal electrodes as well as mass transfer in liquid metal and molten salt phases.
Journal ArticleDOI
High-Temperature Oxidation and Corrosion of Structural Materials in Molten Chlorides
TL;DR: In this article, two stainless steels, tantalum and two Inconel alloys, were submitted to a corrosion test in an argon atmosphere with 10% oxygen, and the coupons were partially immersed in molten lithium chloride salt containing small amounts of lithium metal, lithium oxide, and lithium nitride.