Modeling of Microstructural Evolution in Squeeze Casting of an Al-4.5mass%Cu Alloy.

• Cho In-Sung

  Department of Metallurgical Engineering, Yonsei University

• Hong Chun-Pyo

  Department of Metallurgical Engineering, Yonsei University

抄録

A stochastic model based on the coupling of the cellular automaton technique with the finite volume method was developed to simulate the formation of solidification grain structures in the squeeze casting of an Al-4.5mass%Cu alloy. The present model was also applied to predict the CET (columnar-to-equiaxed transition). The interfacial heat transfer coefficients between the casting and the die were evaluated as a function of time using an inverse problem method. Solidification sequences in squeeze casting were simulated using the calculated interfacial heat transfer coefficients. The effects of casting process variables on the CET and the solidification grain structures in squeeze casting of an Al-4.5mass%Cu alloy were investigated. The predicted solidification grain structures were in good agreement with those obtained experimentally. It was found that the CET can be predicted using the concept of the interface velocity at the solidification front.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 37 (11), 1098-1106, 1997

  一般社団法人 日本鉄鋼協会

キーワード

• squeeze casting
• columnar to equiaxed transition
• aluminum alloys
• directional casting
• cellular automaton
• finite volume method
• heat transfer coefficient
• inverse problem method
• solidification grain structure
• interface velocity

詳細情報

• CRID: 1390282681428125824
• NII論文ID: 10002457513
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.37.1098
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/37/11/37_11_1098/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可