한국주조공학회지 (Journal of Korea Foundry Society)

  • 제29권3호
  • /
  • Pages.120-127
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  • 2009
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  • 1598-706X(pISSN)
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  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
권호 표지

고규소 고몰리브덴 구상흑연주철, 고규소 고몰리브덴 C. V. 주철 및 Ni-resist 주철 특성의 비교 평가

Comparative Evaluation of the Characteristics of High Si-High Mo Ductile Cast Iron, High Si-High Mo C. V. Cast Iron and Ni-resist Cast Iron

  • 발행 : 2009.06.20
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초록

The characterestics of high Si-high Mo ductile cast iron, high Si-high Mo C.V. cast iron and Ni-resist cast iron were compared and evaluated. The nodule count of the last one was lower and the nodularity was higher than those for the first one, respectively. The first two had ferritic matrices with small amounts of molybdenum carbides. The first one had the highest tensile strength and the last one the lowest elongation. This had the highest high temperature strength and that of the second one was greatly increased from the room temperature strength. The volumes of the first two were decreased during cooling and that of the last one changed little. The thermal expansion coefficient of the last one was the highest and the first one the lowest. During high temperature oxidation, even though the volume of the first one was increased, the weight was decreased and the volume and weight of the second one were increased. The change of the increased weight of the last one was more than that of thickness.

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참고문헌

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