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pISSN : 1598-706X / eISSN : 2288-8381


(논문)연구논문

한국주조공학회지 (5권4호 271-282)

Study on Mold-Metal Reaction in Castings of Mn-Steel and Cr-Steel

Mn 및 Cr 주강의 주형반응에 관한 연구

J. H. Lee, J. Y. Jeong, LN. Lee

Korea University

Abstract

In order to investigate the mold reaction characteristics of Mn steel and Cr steel castings individually, the mold reaction products were examined by scanning electron microscopy, electron prove microanalyzer and X-ray diffractometer. From this experiment, the results were summarized as follows: 1) The mold reaction depth increased with increase of Mn content, while it decreased with increase of Cr content. 2) Mold reaction depth decreased with Mn content at 1200℃. 3) Mn, among the reaction products, forms a low fusion silicate, Mn O.SiO_2while Cr forms a stable oxide, CrO_3 which hindering the reaction between FeO and SiO_2 thus the formation of FeO.SiO_2 was depressed.

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