Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effects of Section Size and Melt Holding on the Mechanical Properties and Microstructure of High Silicon Ductile Cast Iron

고규소 구상흑연주철의 기계적 성질 및 미세조직에 미치는 단면 크기 및 용탕 유지의 영향

  • 이숙주 (남양금속주식회사) ;
  • 박기호 (남양금속주식회사) ;
  • 이상희 (한국폴리텍 VI대학 신소재응용과) ;
  • 권해욱 (영남대학교 공과대학 신소재공학부)
  • Received : 2011.12.27
  • Accepted : 2012.03.29
  • Published : 2012.04.30
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Abstract

The effects of section size and melt holding time on the mechanical properties and microstructure of high silicon ductile cast iron were investigated. The strength, elongation and hardness of the test specimen with smaller cross-section were higher than those with larger one. The nodule count and volume fraction of pearlite of the former were higher than those of the latter. The mechanical properties decreased with increased melt holding time before pouring. Nodularity and nodule count decreased and the volume fraction of pearlite rather slightly increased with it.

Keywords

References

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