Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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The study on cryogenic properties of austenitic stainless steels by the addition of Nitrogen

Austenite계 Stainless강의 저온특성변화에 관한 N의 영향

  • Kim, J.O. (Department of Materials Science and Engineering, Dankook University) ;
  • Chol, Y. (Division of Materials, Sunmoon University) ;
  • Choe, J.I. (Department of Materials Science and Engineering, Dankook University)
  • 김정옥 (단국대학교 신소재공학과) ;
  • 최용 (선문대학교 재료공학부) ;
  • 최진일 (단국대학교 신소재공학과)
  • Received : 2002.02.14
  • Published : 2002.07.30
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Abstract

The effects of Ni and N addition to 304 stainless steel on mechanical properties and microstructure were investigated within temperature ranged from $-196^{\circ}C$ to $25^{\circ}C$. The addition of nickel and nitrogen induced the stability against the formation of provide significantly enhanced ductility at $-196^{\circ}C$ and reduce the Md temperature. Fe-18Cr-10Ni-0.2N alloy showed the ${\gamma}$ phase in deformed structure which it was beneficial to enhance the tensile strength and elongation at $25^{\circ}C$ and $-196^{\circ}C$.

Keywords

Acknowledgement

Supported by : 단국대학교

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