• 제목/요약/키워드: tritium

검색결과 283건 처리시간 0.03초

삼중수소 저장용기 이종용접부의 수소취화 거동 평가 (II) (Evaluations of Hydrogen Embrittlement Behaviours on Dissimilar Welding Part of SDS Bottles (II))

  • 조경원;최재하;장민혁;이영상;홍태환
    • 한국수소및신에너지학회논문집
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    • 제26권2호
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    • pp.120-126
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    • 2015
  • Recently, the ever-increasing use of fossil fuels for rapid industrial development and population significantly caused an environment pollution and global warming such as climate change. So research and development of sustainable and eco-friendly energy have been performed. Especially the interest in nuclear fusion fuel was significantly increased from the developed countries. The system of fusion energy production was tritium separation, storage and delivery, and purification. Republic of Korea is in charge of Storage and Delivery System (SDS) in the International Thermonuclear Experimental Reactor (ITER). Welding part of the SDS bottles for storing the tritium is known to be susceptible to hydrogen embrittlement. In this study, conducted a study for the relaxation of the stability and hydrogen embrittlement of the weld area. The hydrogen heat treatment was processed through the Pressure-Composition-Temperature (PCT) device according to the time variation. Also mechanical properties such as impact test and hardness test according to using the alkaline cleaning liquid for hydrogen embrittlement relief and the fracture was observed by scanning electron microscopy (SEM) after the mechanical properties evaluation.