Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Hydrogen Brittleness on Welding Part for SDS Bottles

삼중수소 저장용기 이종 접합부의 수소 취성

  • Kim, Raymund K.I. (Korea National University of Transportation) ;
  • Jung, Seok (Dept. of Materials Science and Engineering, Myongji University) ;
  • Kang, Hyungoo (Tritium Technology Team / ITER KOREA / National Fusion Research Instritute) ;
  • Chang, Minho (Tritium Technology Team / ITER KOREA / National Fusion Research Instritute) ;
  • Yun, Seihun (Tritium Technology Team / ITER KOREA / National Fusion Research Instritute) ;
  • Hong, Tae-Whan (Korea National University of Transportation)
  • 김경일 (한국교통대학교 신소재공학과) ;
  • 정석 (명지대학교 신소재공학과) ;
  • 강현구 (ITER 한국사업단 국가핵융합연구소 삼중수소 기술팀) ;
  • 장민호 (ITER 한국사업단 국가핵융합연구소 삼중수소 기술팀) ;
  • 윤세훈 (ITER 한국사업단 국가핵융합연구소 삼중수소 기술팀) ;
  • 홍태환 (한국교통대학교 신소재공학과)
  • Received : 2013.04.01
  • Accepted : 2013.04.26
  • Published : 2013.04.30
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Abstract

Tritium was attracted with high energy source in neutron fusion energy systems. A number of research was performed in tritium storage materials. The Korea was raised storage and delivery systems (SDS) of international thermonuclear experimental reactor (ITER) research. However, bottles of SDS would be important because of stability. The bottles have a welding zone, this zone will be vulnerable to hydrogen embrittlement. This zone have a high thermodynamic energy and heat deterioration. Therefore bottles were studied about hydrogen embrittlement to retain stability. The heat treatment of hydrogen was carried under pressure-composition-temperature (PCT) apparatus because of checking at real time. And then, mechanical properties were evaluated by tensile test and hardness test. In results of this study, hydrogen atmosphere condition is very important by tensile test and kinetics test. The samples were evaluated, that is more weak hydrogen pressure, increasing temperature and time. This results could be useful in SDS bottle designs.

Keywords

References

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