| FCCI 방지를 위한 내면 Cr 도금 피복관의 물성 평가 |
| 김준환, 이병운, 천진식, 김성호 |
| 한국원자력연구원 차세대핵연료기술개발부 |
| Evaluation of Material Properties on the Inner Surface of Cr Plated Cladding Tube for Preventing Fuel-Cladding Chemical Interaction |
| Jun Hwan Kim, Byoung Oon Lee, Jin Sik Cheon, Sung Ho Kim |
| Next Generation Fuel Development Division, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea |
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Received: 2 February 2016; Accepted: 5 April 2016. Published online: 5 November 2016. |
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| ABSTRACT |
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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. |
| Keywords:
metals, plating, mechanical properties, tensile test, fuel-cladding chemical interaction (FCCI) |
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