Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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The Effect of Aging Treatment on the Corrosion Resistance in Super Duplex Stainless Steel with Added W

텅스텐이 첨가된 슈퍼 2상 스테인리스강의 내식성에 미치는 시효처리의 영향

  • Kim, Soo-Chun (Dept. of Metallurgical Engineering, Pukyong National University) ;
  • Choi, Han-Gul (Dept. of Metallurgical Engineering, Pukyong National University) ;
  • Kim, Yun-Kyu (Dept. of Metallurgical Engineering, Pukyong National University) ;
  • Park, Young-Tae (Dept. of Metallurgical Engineering, Pukyong National University) ;
  • Lee, Jong-Mun (Dept. of Metallurgical Engineering, Pukyong National University) ;
  • Park, Jin-Hwan (Division of Chemcal Engineering, Pukyong National University) ;
  • Kang, Chang-Yong (Dept. of Metallurgical Engineering, Pukyong National University)
  • 김수천 (부경대학교 신소재공학부) ;
  • 최한글 (부경대학교 신소재공학부) ;
  • 김윤규 (부경대학교 신소재공학부) ;
  • 박영태 (부경대학교 신소재공학부) ;
  • 이종문 (부경대학교 신소재공학부) ;
  • 박진환 (부경대학교 화학공학부) ;
  • 강창룡 (부경대학교 신소재공학부)
  • Published : 2009.12.31
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Abstract

The effect of aging on the precipitation of the $\sigma$ phase and the corrosion resistance in tungsten substituted super duplex stainless steels was investigated. The volume fraction of the $\sigma$ phase and the current density increased with aging at temperatures up to $750^{\circ}C$ and then decreased. With an increase in aging time, the volume fraction of the $\sigma$ phase and the current density also increased. The $\sigma$ phase hardly influenced the corrosion resistance. With the substitution of tungsten for molybdenum in super duplex stainless steel, the volume fraction of the $\sigma$ phase and the current density decreased remarkably.

Keywords

References

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