한국주조공학회

The effect of carbon equivalent on the fading behavior of hypoeutectic ductile cast iron was investigated. The carbon content was slightly increased right after graphite spheroidization treatment and remained almost constant with holding at l,490°C after 4 minute. The residual magnesium content was decreased slowly with holding. The empirical equation expressing the relationship between this and holding time was proposed ; C = Co - P >< t . The proportionality constant, P, was inversely proportional to carbon content.

Fading, Ductile cast iron, Residual Mg, Holding time , Carbon equivalent, Graphite spheroidization treatment.