Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effect of Sn Addition on Corrosion Behavior of Zr-1.0 Nb-xSn Alloy System

Zr-1.0Nb-xSn 합금의 부식거동에 대한 Sn첨가의 영향

  • Lee, Myeong-Ho (Advanced Zr Alloy Development, Korea Atomic Energy Research Institute) ;
  • Choe, Byeong-Gwon ( Advanced Zr Alloy Development, Korea Atomic Energy Research Institute) ;
  • Jeong, Yong-Hwan (Advanced Zr Alloy Development, Korea Atomic Energy Research Institute)
  • 이명호 (한국원자력연구소 지르코늄신합금핵연료피복관개발팀) ;
  • 최병권 (한국원자력연구소 지르코늄신합금핵연료피복관개발팀) ;
  • 정용환 (한국원자력연구소 지르코늄신합금핵연료피복관개발팀)
  • Published : 2002.05.01
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Abstract

To investigate the corrosion behavior of Zr-1.0Nb-xSn (x=1.0, 1.5, 2.0 and 2.5wt. %)alloy system, the corrosion tests of Zr-1.0Nb-xSn alloys were carried out in steam at $400^{\circ}C$ for 125 days and in 70ppm LiOH solution at $360^{\circ}C$ for 180 days. The matrix microstructures of the test specimens were analyzed using TEM and the oxide structures on the test specimens were analyzed using XRD. It was found from the analyses that the more Sn content the alloy had, the faster it was corroded and with the increase of Sn content in the alloy the fraction of $t-ZrO_2$ to $m-ZrO_2$ was decreased. It was also found that the alloys having more Sn showed more dislocation density than those having less.

Keywords

References

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