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

  • 제16권4호
  • /
  • Pages.324-333
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  • 2005
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

수소 취성 속도에 관한 이론적 모델링

Theoretical Modeling of the Kinetics of External Hydrogen Embrittlement

  • 한정섭 (동아대학교 공과대학 토목해양공학부) ;
  • Han, Jeong-Seb (School of Civil and Ocean Engineering, Dong-A university) ;
  • Macdonald, Digby D. (Center for Electrochemical Science and Technology, Pennsylvania State University)
  • 발행 : 2005.12.15
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초록

The kinetics of external hydrogen embrittlememt is considered. The equation of the crack growth rate (CGR) is derived from modification of the model developed by Wilkinson and Vitek. After calculation of hydrogen pressure build-up in the void, the effect of the internal hydrogen pressure on the void growth is added. The CGR is expressed by two terms. One is the term dependent on the critical stress, which is exactly same as Wilkinson and Vitek. The other is term dependent on the pressure of the hydrogen in void.

키워드

참고문헌

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