연구논문집

Korea Institute of Machinery & Materials (한국기계연구원)
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A Study on the Fatigue Crack Growth Behavior of Cr-Mo- Steel for Pressure Vessel

압력용기용 Cr-Mo강의 균열진전거동에 관한 연구

  • 최병익 (한국기계연구원 구조시스템연구부 기계구조그룹) ;
  • 이학주 (한국기계연구원 구조시스템연구부 기계구조그룹) ;
  • 한승우 (한국기계연구원 구조시스템연구부 기계구조그룹) ;
  • 김창욱 (한국기계연구원 구조시스템연구부 기계구조그룹) ;
  • 차정환 (한국기계연구원 구조시스템연구부 기계구조그룹) ;
  • 김정태 (한국중공업(주)) ;
  • 지병하 (한국중공업(주))
  • Published : 1999.12.20
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Abstract

Fatigue crack growth behaviors of Cr-Mo steels developed recently for thick-wall pressure vessel were investigated. Experiments in accordance with ASTM E647 standard were performed for 1/2 inch CT specimens of $2^(1/4)$Cr-1Mo and 3Cr-IMo steels in gaseous environments, hydrogen gas of 10 atm, 1 atm and argon gas of 1 atm. Fatigue crack growth rates were observed and effects of gaseous hydrogen and argon on the crack growth behavior were discussed.

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