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Vol.14, No.2, 111 ~ 117, 1976
Title
The Study on the Effect of Manganese in the Spheroidal Graphite Cast Iron
윤남영Nam Young Yoon, 김수영Soo Young Kim
Abstract
In the spheroidal graphite cast iron, the effect of Manganese was studied on the matrix and the state of graphite by differentiating the mass of samples and silicon content. The most important results were as follows; 1. Manganese greatly influenced to the pearlitization of the matrix structure of the spheroidal graphite cast iron. 2. Mass effect on the pearlite matrix was the smallest when the cementite began to precipitate. 3. Manganese did not affect the spheroidization of graphite, but it had an effect upon the fineness at low silicon content. 4. Manganese and silicon did not influence to the size of graphite in the case of ø5㎜. 5. In the case of ø25㎜ sample, by increasing the silicon content, the number of graphite was increased and the size became smaller.
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