한국주조공학회지 (Journal of Korea Foundry Society)

  • 제22권5호
  • /
  • Pages.231-237
  • /
  • 2002
  • /
  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
권호 표지

HSLA-100강의 Osprey 성형

Osprey Forming of HSLA-100 Steels

  • 박수정 (조선대학교 금속 재료공학과) ;
  • 이길홍 (조선대학교 금속 재료공학과) ;
  • 이현규 (조선대학교 금속 재료공학과)
  • Park, Su-Jung (Dept. of Metallugical and material Eng., Chosun University) ;
  • Lee, Kil-Hong (Dept. of Metallugical and material Eng., Chosun University) ;
  • Lee, Hyun-Kyu (Dept. of Metallugical and material Eng., Chosun University)
  • 발행 : 2002.10.20
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초록

The structure and properties of HSLA steel obtained by Osprey forming process were investigated. The porosities were generated at the bottom of specimen due to the quenching effect of cold substrate during forming. The steel had a bainitic structure. The grain size were different among positions due to the cooling rates. The elements such as Mn, S, Si, Cr, Mo and etc. were contained in inclusions. They were formed at grain boundries. The size of them was $1{\sim}2{\mu}m$ and has nothing to do with the chemical composition. MnS and NbC were precipitated during rolling and aging.

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참고문헌

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  7. J. of Korea Inst. Met. & Mater. v.34 The Carbide Forming Behavior in a High Speed Steel Produced by Spray Casting Process K. H. Baik;E. S. Lee;S. Ahn
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