多元合金鋳鉄の凝固におけるチル形成の予測

• 香川 明男

  長崎大学工学部材料工学科

• 劉 紅梅

  長崎大学工学部材料工学科

書誌事項

タイトル別名

• Prediction of Chill Formation on Solidification of Multicomponent Cast Irons
• タゲン ゴウキン チュウテツ ノ ギョウコ ニ オケル チル ケイセイ ノ ヨソク

抄録

  Availability of the computer simulation based on the nucleation and growth models have been examined by comparing the results of simulation with those obtained by chill test of the Fe-C-Ni-Si-Cr multicomponent cast iron using a wedge-shape mold. A linear growth model for ledeburite combined with the radial growth model for gray eutectic was introduced and the prediction showed a satisfactory agreement with the observed distribution of chill fraction and chill depth. The graphitizing ability of silicon was comparable with the anti-graphitizing effect of chromium on relatively slow cooling, while faster cooling enhanced the graphitizing ability of silicon. It was demonstrated from the results of simulation that silicon equivalent of chromium, given by SE^∗ = (%Si) - (2/3) (%Cr) as a chilling index, showed a good correlation with logarithmic chill depth and logarithmic critical cooling rate for chill formation.

収録刊行物

• 鋳造工学

  鋳造工学 71 (1), 16-21, 1999

  公益社団法人 日本鋳造工学会

キーワード

• cast iron
• chill
• multicomponent alloy
• computer simulation
• microstructure

詳細情報

• CRID: 1390282681483389568
• NII論文ID: 10002554597
• NII論文ID: 130004556304
• NII書誌ID: AN10514770
• DOI: 10.11279/jfes.71.16
• ISSN: 21855374
• ISSN: 13420429
• NDL書誌ID: 4637940
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4637940
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可