Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effects of Alloying Element and Heat Treatment on the Mechanical Properties of Ductile Cast Iron Poured into Shell Stack Mold

쉘 적층 주조 구상흑연주철의 기계적 성질에 미치는 합금원소 및 열처리의 영향

  • 김효민 (영남대학교 대학원 첨단뿌리산업공학과) ;
  • 권민영 (영남대학교 대학원 신소재공학과) ;
  • 천병철 (해원산업(주)) ;
  • 권도영 (해원산업(주)) ;
  • 김기엽 (한국폴리텍대학 창원캠퍼스 신소재응용과) ;
  • 권해욱 (영남대학교 공과대학 신소재공학부)
  • Received : 2020.02.15
  • Accepted : 2020.05.13
  • Published : 2020.06.30
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Abstract

The effects of Alloying Element and Heat Treatment on the mechanical properties of ductile cast iron poured into shell stack molds were investigated. The strength and hardness were increased and the elongation was decreased roughly with the increased amounts of tin and copper added, respectively. Those were greatly increased with the increased amount of tin added and the elongation was roughly decreased with it. In the simultaneous addition of copper and tin, the strength and hardness of the tin increased, but the elongation rate decreased. Those were greatly increased and this was decreased with normalizing. In the case of specimens with smaller section sizes during austempering processing, the strength and hardness were higher than those with larger sections, but the elongation rate was lower.

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References

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