대한금속재료학회지 (Korean Journal of Metals and Materials)

  • 제49권1호
  • /
  • Pages.17-24
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  • 2011
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  • 1738-8228(pISSN)
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  • 2288-8241(eISSN)
대한금속재료학회 (The Korean Institute of Metals and Materials)
권호 표지
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저 Sn 함유 Zr-Nb-Sn-Fe 합금 튜브 제조 및 최종 열처리 온도에 따른 기계적/부식특성 변화

Processing of Low Tin Zr-1Nb-0.69Sn-0.11Fe Alloy Tubes and Effect of Final Heat Treatment on Their Mechanical and Corrosion Properties

  • 조남찬 (한국원자력연료 튜브사업단 운영팀) ;
  • 이종민 (충남대학교 응용소재공학과) ;
  • 홍순익 (충남대학교 응용소재공학과)
  • Cho, Nam Chan (Planning & Plant Service Team, Korea Nuclear Fuel) ;
  • Lee, Jong Min (Department of Advanced Materials Engineering, Chungnam National University) ;
  • Hong, Sun Ig (Department of Advanced Materials Engineering, Chungnam National University)
  • 투고 : 2010.09.30
  • 발행 : 2011.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

To investigate the relationship between heat treatment in zirconium alloy tubing process and metallurgical characteristics of Zr-1Nb-0.69Sn-0.11Fe alloy tubes, mechanical and oxidation behaviors of tubes heat treated at different temperatures after the final pilgering were investigated. The stress strain curves exhibited the saturation behaviors in all heat treatment conditions ($460{\sim}600^{\circ}C$) in this study with the onset strain of saturation increased with increase of post-pilgering annealing temperature. The strength fell off rapidly with increasing annealing temperature. The ultimate strength of the low tin Zr-1Nb-0.69Sn-0.11Fe alloy with slightly higher iron and oxygen contents in this study was found to be higher than Zr-1Nb-1Sn-0.1Fe alloy. The oxidation experiments in steam condition revealed that the corrosion resistance of low tin Zr-1Nb-0.69Sn-0.11Fe alloy was better than the Zr-1Nb-1Sn-0.1Fe alloy with a higher Sn content. The weight gain of low tin Zr-1Nb-0.69Sn-0.11Fe alloy tubes gradually increased with the increasing annealing temperature possibly due to the decreased Nb content in the matrix because of the formation of ${\beta}-Nb$ particles.

키워드

과제정보

연구 과제 주관 기관 : 연구재단

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