Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Manufacturing Process Effect on Strength and Corrosion Properties of Zr Alloys for Fuel Guide Tube

핵연료 안내관용 지르코늄 합금의 강도 및 부식 성능에 미치는 제조공정 영향

  • Kim, Hyun-Gil (Nuclear Convergence Technology Division, Korea Atomic Energy Research Institute) ;
  • Kim, Il-Hyun (Nuclear Convergence Technology Division, Korea Atomic Energy Research Institute) ;
  • Choi, Byung-Kwan (Nuclear Convergence Technology Division, Korea Atomic Energy Research Institute) ;
  • Park, Sang-Yoon (Nuclear Convergence Technology Division, Korea Atomic Energy Research Institute) ;
  • Park, Jeong-Yong (Nuclear Convergence Technology Division, Korea Atomic Energy Research Institute) ;
  • Jeong, Yong-Hwan (Nuclear Convergence Technology Division, Korea Atomic Energy Research Institute)
  • 김현길 (한국원자력연구원 원자력융합기술개발부) ;
  • 김일현 (한국원자력연구원 원자력융합기술개발부) ;
  • 최병권 (한국원자력연구원 원자력융합기술개발부) ;
  • 박상윤 (한국원자력연구원 원자력융합기술개발부) ;
  • 박정용 (한국원자력연구원 원자력융합기술개발부) ;
  • 정용환 (한국원자력연구원 원자력융합기술개발부)
  • Received : 2009.07.31
  • Published : 2009.12.20
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Abstract

The manufacturing process of zirconium alloys is an import factor to increase their strength and corrosion resistance. In order to find an improved manufacturing process of zirconium alloys in both Zr-1Nb-1Sn-0.1Fe (Alloy-A) and Zr-1.5Nb-0.4Sn-0.2Fe-0.1Cr (HANA-4) for fuel guide tubes, sheet samples were prepared by applying two- and three-step processes that were controlled by an annealing and reduction condition. The mechanical strength and corrosion resistance of both alloys were increased by applying the twostep process rather than the three-step process. From a matrix analysis using TEM, the property improvement is related to the decrease of the precipitate mean diameter with an application of the two-step process. In a comparison of the strength and corrosion properties between Alloy-A and HANA-4, the performance of HANA-4 was feasible for application to fuel guide tubes.

Keywords

Acknowledgement

Supported by : 교과부

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