|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Recent Developments in Biological, Structural and Functional Thin Films & Coatings
||Electro-deposited Cr Coating Layer to Hinder Fuel Cladding Chemical Interaction in Sodium Fast Reactor (SFR)
||Sunghwan Yeo, Junhwan Kim
|On-Site Speaker (Planned)
U-Zr metallic fuel and martensitic steel cladding are utilized in Sodium-cooled Fast Reactor (SFR) which is one of advanced nuclear reactors. SFR has an advantage to recycle radioactive waste such as plutonium and actinide by including them in fuel. The cladding temperature is increased up to 650oC during the normal operation of SFR. In that high temperature, unfortunately, martensitic steel reacts metallic fuel to form eutectic compounds reducing the fuel integrity. To prevent fuel cladding chemical interaction, the application of diffusion barrier between fuel and cladding has been proposed. Chromium was selected as one of the potential barrier materials and electroplating was reconized as easy and cost-effective coating method. This study describes the status of the Cr electroplating technology, the effective parameters, and resultant microstructures. Moreover, heat treatments of Cr coated cladding at 650oC were performed to investigate the influence of heating on the microstructure of coating layer.
||Planned: Supplemental Proceedings volume