| Title |
Evaluation of Material Properties on the Inner Surface of Cr Plated Cladding Tube for Preventing Fuel-Cladding Chemical Interaction |
| Authors |
김준환(Jun Hwan Kim); 이병운(Byoung Oon Lee); 천진식(Jin Sik Cheon); 김성호(Sung Ho Kim) |
| DOI |
https://doi.org/10.3365/KJMM.2016.54.11.855 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
metals; plating; mechanical properties; tensile test; fuel-cladding chemical interaction (FCCI) |
| Abstract |
Studies were carried out to apply electroplating technique to the inner surface of a nuclear fuel cladding tube to prevent a fuel-cladding chemical interaction (FCCI) in a sodium-cooled fast reactor (SFR). 20 μm thick Cr was uniformly plated onto the inner surface of a HT9 cladding tube with a 7.4 mm outer diameter and 0.56 mm thickness. Diffusion couple testing of simulated metal fuel (rare earth alloy) as well as tensile and burst tests were carried out, which revealed that the Cr plating exhibited good FCCI resistance as well as mechanical compatibility. In-reactor performance of Cr-plated cladding tube was performed using the HANARO research reactor, where Cr plating showed excellent FCCI resistance in spite of some local cracks. (Received February 2, 2016; Accepted April 5, 2016) |