냉각속도가 지르칼로이-4 피복관의 취성에 미치는 영향

Effect of Cooling Rate on the Behavior of the Embrittlement in Zircaloy-4 Cladding

  • 김준환 (지르코늄신합금 개발팀, 한국원자력연구소) ;
  • 이명호 (지르코늄신합금 개발팀, 한국원자력연구소) ;
  • 최병권 (지르코늄신합금 개발팀, 한국원자력연구소) ;
  • 정용환 (지르코늄신합금 개발팀, 한국원자력연구소)
  • Kim, Jun Hwan (Zirconium Fuel Cladding Development Team, Korea Atomic Energy Research Institute) ;
  • Lee, Myoung Ho (Zirconium Fuel Cladding Development Team, Korea Atomic Energy Research Institute) ;
  • Choi, Byoung Kwon (Zirconium Fuel Cladding Development Team, Korea Atomic Energy Research Institute) ;
  • Jeong, Yong Hwan (Zirconium Fuel Cladding Development Team, Korea Atomic Energy Research Institute)
  • 투고 : 2005.02.15
  • 심사 : 2005.03.15
  • 발행 : 2005.03.30

초록

Study was focused on the effect of the cooling rate on the embrittlement behavior of Zircaloy-4 cladding simulated Loss Of Coolant Accident (LOCA) environment. Claddings were oxidized at given temperature and given time followed by various water quenching in the range of $0.6^{\circ}C$ and $100^{\circ}C$ per second. Cladding failed after water quenching above the threshold oxidation. Threshold oxidation was decreased as the cooling rate increased, which is due to the matensite structure formed during fast cooling rate.

키워드

과제정보

연구 과제번호 : K-피복관 고유 제조공정기술 개발

연구 과제 주관 기관 : 산업자원부

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