Corrosion Science and Technology

  • 제13권4호
  • /
  • Pages.145-151
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  • 2014
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  • 1598-6462(pISSN)
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  • 2288-6524(eISSN)
한국부식방식학회 (The Corrosion Science Society of Korea)
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핵연료 피복관 부식생성물 부착에 관한 Ni/Fe 이온 농도비의 영향

Effect of Ni/Fe Ion Concentration Ratio on Fuel Cladding Crud Deposition

  • 백승헌 (한국원자력연구원 원자력재료안전연구부) ;
  • 김우철 (한국원자력연구원 원자력재료안전연구부) ;
  • 심희상 (한국원자력연구원 원자력재료안전연구부) ;
  • 임경수 (한국원자력연구원 원자력재료안전연구부) ;
  • 허도행 (한국원자력연구원 원자력재료안전연구부)
  • Baek, S.H. (Nuclear Materials Safety Research Division, Korea Atomic Energy Research Institute) ;
  • Kim, U.C. (Nuclear Materials Safety Research Division, Korea Atomic Energy Research Institute) ;
  • Shim, H.S. (Nuclear Materials Safety Research Division, Korea Atomic Energy Research Institute) ;
  • Lim, K.S. (Nuclear Materials Safety Research Division, Korea Atomic Energy Research Institute) ;
  • Hur, D.H. (Nuclear Materials Safety Research Division, Korea Atomic Energy Research Institute)
  • 투고 : 2014.06.05
  • 심사 : 2014.08.28
  • 발행 : 2014.08.31
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초록

The objectives of this study are to investigate the effect of the concentration ratios of Ni and Fe ions on crud deposition onto the fuel cladding surface in the simulated primary environments of a pressurized water reactor. Crud deposition tests were conducted in the Ni and Fe concentration ratios of 20:20 ppm, 39:1 ppm and 1:39 ppm at $325^{\circ}C$ for 14 days. In the case of the same Ni and Fe ion ratio (20:20), nickel ferrite with a polyhedral shape was formed. Nickel oxide deposits with a needle shape were formed in the condition of high Ni to Fe ion ratio (39:1), While polyhedral iron oxide and needle-like nickel oxide formed in the condition of low Ni to Fe ion ratio (1:39). The amount of deposits increased, when Fe oxides were formed. This indicates that Fe rich oxides stimulated Ni oxide deposition.

키워드

참고문헌

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피인용 문헌

  1. Sampling and Analysis of PWR Primary Cooling System Corrosion Products Using an EPMA vol.207, pp.5, 2014, https://doi.org/10.1080/00295450.2020.1805250