Ｃａ，ＲＥ及びＭｇ‐Ｔｉ処理した各種鋳鉄の黒鉛核生成

概要

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The internal structure of graphite in Ca treated SG iron, rare-earth treated SG iron, Mg-Ti treated CV iron and gray iron was studied by a high performance SEM with EDS. In each case, regardless of the graphite shape, sulfide inclusions containing fine oxide particles were found near the center of the graphite. These sulfide inclusions are considered to work as the heterogeneous nuclei for graphite. The graphite morphology is significantly dependent on the crystallographic features and the shape of sulfide as well as the attached inclusions such as TiCN.
Japan Foundry Engineering Societyの論文