過共晶片状黒鉛鋳鉄の減衰特性に及ぼす黒鉛形状とマトリックスの影響

• 趙 柏榮

  自動車鋳物(株)

• 上野 勝司

  自動車鋳物(株)

• 阿部 隆之

  自動車鋳物(株)

• 中江 秀雄

  早稲田大学材料技術研究所

書誌事項

タイトル別名

• Influence of Graphite Morphology and Matrix on Damping Capacity of Hypereutectic Cast Iron
• カキョウショウヘンジョウ コクエン チュウテツ ノ ゲンスイ トクセイ ニ オヨボス コクエン ケイジョウ ト マトリックス ノ エイキョウ

抄録

  Flake graphite cast iron is a high damping metal. Cast iron is used for engine block and brake materials in the automobile industry due to its low cost and high abrasive characteristics. High drivability characteristics of automobiles such as silence and effective braking ability are becoming more and more important recently. Since the anti-brake squeal materials are therefore needed for the brake materials, we studied the influence of graphite morphology and matrix on the damping capacity of hypereutectic cast iron.<br>  The results charified that the damping capacity of the cast iron has good correlation with the graphite shape factor K_o, length of periphery of a graphite divided by the square root of the area, and kind of matrix. The damping capacity increases with the K_o value. This means that longer and thinner graphite promotes high damping capacity. Moreover, if the matrix consists of small amounts of martensite and bainite, up to 10%, with pearlite, the damping capacity increases with the fraction of the martensite and bainite.

収録刊行物

• 鋳造工学

  鋳造工学 76 (4), 303-308, 2004

  公益社団法人 日本鋳造工学会

キーワード

• damping capacity
• logarithmic damping decrement
• flake graphite iron
• graphite morphology
• matrix

詳細情報

• CRID: 1390282681483246208
• NII論文ID: 10013435663
• NII書誌ID: AN10514770
• DOI: 10.11279/jfes.76.303
• ISSN: 21855374
• ISSN: 13420429
• NDL書誌ID: 6919885
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6919885
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可