半凝固成形プロセスによる高機能過共晶鋳鉄の創製

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タイトル別名
  • Semi-Solid Processing of Hyper-Eutectic Cast Iron
  • ハンギョウコ セイケイ プロセス ニ ヨル コウキノウ カキョウショウ チュウテツ ノ ソウセイ

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抄録

  A series of semi-solid processing experiments were carried out under various conditions to clarify the effects of stirring condition and quenching temperature for hyper-eutectic cast iron. A characteristic cast structure was obtained when the slurry was cooled with stirring within the temperature region where the ternary phase coexists. Proper stirring of the semi-solid cast iron yielded microstructure, with uniformly distributed fine graphite and eutectic cell. Semi-solid processed hyper-eutectic cast iron gives reasonable mechanical strength and elongation values with good wear resistance, compared to hyper-eutectic cast iron obtained normally. In addition, functionally gradated cast iron was obtained by carburizing during the stirring of semi-solid hypo-eutictic cast iron. The microstructure, carbon content and mechanical properties are gradated from the inside to the outside of the specimen. Semi-solid processing cast iron has promising prospects for application in many industrial fields because of their attractive properties.

収録刊行物

  • 鋳造工学

    鋳造工学 73 (11), 721-726, 2001

    公益社団法人 日本鋳造工学会

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