• 제목/요약/키워드: Kwon Young

검색결과 15,777건 처리시간 0.053초

쉘 적층 주조 구상흑연주철의 기계적 성질에 미치는 합금원소 및 열처리의 영향 (Effects of Alloying Element and Heat Treatment on the Mechanical Properties of Ductile Cast Iron Poured into Shell Stack Mold)

  • 김효민;권민영;천병철;권도영;김기엽;권해욱
    • 한국주조공학회지
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    • 제40권3호
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    • pp.76-84
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    • 2020

  • 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.

  • https://doi.org/10.7777/jkfs.2020.40.3.76 인용 PDF KSCI