과제정보
연구 과제 주관 기관 : 한국학술진흥재단
열처리공학회지 (Journal of the Korean Society for Heat Treatment)
- 제10권3호
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- Pages.159-164
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- 1997
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- 1225-1070(pISSN)
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- 2508-4046(eISSN)
금형주조법에 의한 구상흑연주철의 제조 및 직접 템퍼링에 의한 충격인성 향상
Casting of Ductile Cast Iron using Metal Mold and Improvement of Impact Toughness by Direct Tempering
- Choi, Sung Bae (Dept. of Metallurgical Engineering, Korea University) ;
- Lee, Won Sik (Max-Planck Institut fur eisenforschung GmbH) ;
- Hong, Young Hwan (Dept. of Heat Treatment, Suwon Industrial College)
- 발행 : 1997.09.30
초록
Non-alloyed and 1.0%Ni alloyed ductile cast iron were cast into the sand mold and metal mold, and finer graphite size was obtained in case of metal mold casting. Direct tempering after casting showed the slight increase of absorbed energy, which is largely due to the relieving of residual stress that is developed during casting. After austempering heat treatment, higher impact energy was obtained in case of metal mold casting than sand mold casting, which is due to the finer graphite size.
키워드