Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Evaluation of Cu Effect on Corrosion Characteristics of Zr Alloys

지르코늄합금의 부식특성에 미치는 Cu 영향 평가

  • Kim Hyun Gil (Zirconium Fuel Cladding Team, Korea Atomic Energy Research Institute) ;
  • Choi Byung Kyun (Zirconium Fuel Cladding Team, Korea Atomic Energy Research Institute) ;
  • Jeong Yong Hwan (Zirconium Fuel Cladding Team, Korea Atomic Energy Research Institute)
  • 김현길 (한국원자력연구소 지르코늄신합금 핵연료피복관개발팀) ;
  • 최병권 (한국원자력연구소 지르코늄신합금 핵연료피복관개발팀) ;
  • 정용환 (한국원자력연구소 지르코늄신합금 핵연료피복관개발팀)
  • Published : 2004.07.01
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Abstract

The effect of Cu addition on the corrosion characteristics of Zr alloys that developed for nuclear fuel cladding in KAERI (Korea Atomic Energy Research Institute) was evaluated. The alloys having different element of Nb, Sn, Fe, Cr and Cu were manufactured and the corrosion tests of the alloys were performed in static autoclave at $360^{\circ}C$, distilled water condition. The alloys were also examined for their microstructures using the optical microscope and the TEM equipped with EDS and the oxide property was characterized by using X-ray diffraction. From the result of corrosion test more than 450 days, the corrosion rate of the Zr-based alloys was changed with alloying element such as Nb, Sn, Fe, Cr and especially affected by Cu addition. The corrosion resistance was increased with increasing the Cu content and the tetragonal $ZrO_2$ layer was more stabilized on the Cu-containing alloys.

Keywords

References

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