Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Evaluations of Hydrogen Embrittlement Behaviours on Dissimilar Welding Part of SDS Bottles (I)

삼중수소 저장용기 이종용접부의 수소취화 거동 평가 (I)

  • Cho, Kyoungwon (Dept. of Advanced Materials Engineering, Chungbuk National Univ.) ;
  • Choi, Jaeha (Dept. of Advanced Materials Engineering, Chungbuk National Univ.) ;
  • Jang, Minhyuk (Dept. of Advanced Materials Science and Engineering, Korea National University of Transportation) ;
  • Lee, Youngsang (Dept. of Advanced Materials Science and Engineering, Korea National University of Transportation) ;
  • Hong, Taewhan (Dept. of Advanced Materials Science and Engineering, Korea National University of Transportation)
  • 조경원 (충북대학교 신소재 공학과) ;
  • 최재하 (충북대학교 신소재 공학과) ;
  • 장민혁 (한국교통대학교 신소재 공학과) ;
  • 이영상 (한국교통대학교 신소재 공학과) ;
  • 홍태환 (한국교통대학교 신소재 공학과)
  • Received : 2015.03.23
  • Accepted : 2015.04.30
  • Published : 2015.04.30
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Abstract

Nowdays, fossil fuels have been used as an important resource in development of industry. But it is limited and caused climate change such as pollution and global warming. So nuclear fusion research is being issued with tritium to develop eco-friendly and sustainable energy. Republic of Korea is in charge of Storage and Delivery System (SDS) in the International Thermonuclear Experimental Reactor (ITER), weld present in the SDS bottles are easily exposed to the hydrogen embrittlement of special characteristics of the hydrogen in hydrogen atmosphere, When the hydrogen embrittlement is rapidly progresses, the cracking is generated in the weld zone. Due to this cracking, the risk of leakage of tritium into the atmosphere occurs. In this study, hydrogen heat treatment was processed through the Pressure-Composition-Temperature (PCT) device according to the time variation. Also mechanical properties such as rupture strength test, three point bend test and hardness test in accordance with the respective time have been conducted and the fracture was observed by scanning electron microscopy(SEM) after the mechanical properties evaluation.

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References

  1. Sangmok Kang, "Effect of Fossil Fuels and Green House Gas on Production Efficiency and Economic Growth", Environmental and Resource Economic Review, Vol. 23, No. 3, 2014, pp. 365-408. https://doi.org/10.15266/KEREA.2014.23.3.365
  2. R. Kurose, H. Tsuji, H. Makino, "Effects of moisture in coal on pulverized coal combustion characteristics", Fuel 80, 2001, pp. 1457-1465. https://doi.org/10.1016/S0016-2361(01)00019-9
  3. Raymund K. I. Kim, Jung Seok, Hyungoo Kang, Minho Chang, Seihun Yun and Tae whan Hong, "Hydrogen Brittleness on Welding Part for SDS Bottles", Trans. of the Korean Hydrogen and New Energy Society, Vol. 24, No. 2, pp. 121-127. https://doi.org/10.7316/KHNES.2013.24.2.121
  4. Hongsuk Chung, Dongyou Chung, Daeseo Koo, Jisung Lee, Myunghwa Shim, Seungyon Cho, Kijung Jung and Seihun Yun, "Storage and Delivery of Hydrogen Isotopes", Trans. of the Korean Hydrogen and New Energy Society, Vol. 22, No. 3, 2011, pp. 372-379.
  5. Yang, Haejin, Yi, Huijun, Lee, Jungsoo and Oh, Myounghwan, "The effect of TIG Dressing on titanium alloy weldment", KSPE Spring Conference, 2011, pp. 303-306.
  6. ASTM International, ASTM Welding Handbook, 2002.
  7. Uh Joh Lim and Choi Byung Il, "The Study on the Mechanical Characteristics of Hydrogen Embrittlement for the Weld Zone of Ferrite Stainless Steel", Journal of the Korean Institute Gas, Vol. 9, No. 4, 2005.
  8. F. Garzarolli, H. Seidel, R. Tricot, and J.P. Gros, "Oxide Growth Mechanism on Zirconium Alloys, Zirconium in the Nuclear Industry : Ninth International Symposium" ASTM STP 1132, 1991 395-415.
  9. Kwangjin Park, JungHyun Kim, Jaehwa Jeong and Joongmyeon Bae, "Study on hydrogen embrittlement of fuel line for PEMFC", Transactions of the Korean Society of mechanical engineers, No. 5, 2007, pp. 1104-1108.
  10. Chulchi Lee, Jaewoo Park and KaeMyung Kang, "The change of Microstructures According to the Charging Amounts of Hydrogen in High Strength DP steels and TRIP Steel", J. Kor. Inst. Surf. Eng., Vol. 45, No. 3, 2012.
  11. R. Dutton, K. Nuttall, M.P. Puls, and L.A. Simpson, "Mechanism of Hydrogen Induced Delayed Hydride Cracking in Hydride Forming Materials", Metall. Trans.A, 8A, 1977, 1553-1562.
  12. P. Rudling, R. Adamson, B. Cox, F. Garzarolli, and A. Strasser, "High Burnup Fuel Issues", Nuclear Engineering and Technology, Vol.40 No.1 2008.