한국주조공학회지 (Journal of Korea Foundry Society)
- 제10권3호
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- Pages.225-234
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- 1990
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- 1598-706X(pISSN)
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- 2288-8381(eISSN)
고 Si 구상흑연주철의 조직과 기계적성질에 미치는 Si과 Mo의 영향
The Effects of Si and Mo on the Structures and Mechanical Properties in High Si Spheroidal Graphite Cast Iron
- Kim, Jong-Yeon (College of Engineering, Seoul National University) ;
- Ra, Hyung-Yong (College of Engineering, Seoul National University)
- 발행 : 1990.06.20
초록
Spheroidal graphite cast irons which are Fe-3%C-(4-6)%Si-(0-0.5)%Mo were studied to improve not only heat resistance but also mechanical properties. With increasing Mo content, the graphitization was decreased and carbide volume fraction was increased. The graphite spheroidization ratio was not decreased in Fe-3%C-6%Si-Mo system cast iron with increasing Mo content, but that was decreased in Fe-3%C-4%Si-Mo system and Fe-3%C-5%Si-Mo system cast irons. Hardness was increased with the Si and Mo contents. At constant Si content, tensile strength was increased with increasing Mo content, but that was decreased at 6%Si. In the experiment of oxidation, weight gain was decreased as the Si and/or Mo content increased, but increased at 1.5%Mo content.
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