A study on the tensile property and corrosion resistance of austenitic stainless base and weld metal

오스테나이트계 스테인리스강 모재 및 용접부의 인장특성과 내식성에 관한 연구

  • 정호신 (부경대학교, 재료공학과) ;
  • 김조권 (대구기능대학 산업설비학과) ;
  • 엄동석 (부산대학교 조선해양공학과)
  • Published : 1996.08.01

Abstract

The effect of chemical composition on mechanical properry and corrosion resistance of austenitic stainless steel was investigated. The main results obtained were as follows : 1. There was a linear relationship between the tensile strength of stainless steel and the $Cr_{eq}/Ni_{eq}$. The larger the $Cr_{eq}/Ni_{eq}$ was the higher the tensile strength of stainless steel. 2. There was a good correlationship between $Cr_{eq}/Ni_{eq}$ and intergranular, gerneral corrsion rate. 3. Intergranular corrosion rate decreased linearly with increasing Cr content. 4. General corrosion rate decreased linearly with increasing Ni content. 5. Logarithm corrosion rate of intergranular and general corrosion has a linear relationship with all of the factor of $Cr_{eq}/Ni_{eq}$, Cr and Ni content.

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References

  1. Handbook of stainless steel D. Pecker;I. M. Bernstein
  2. Welding handbook(7th ed.), Metals and their weldability v.4 AWS
  3. ステンレス鋼便覽 長谷川
  4. J. Electrochec. Soc. v.118 C. S. Tedmon(et al.)