シリンダヘッド用 Al-Si-Mg系鋳造合金の機械的性質と熱疲労寿命に及ぼす Cu，Mg添加の影響

• 茂泉 健

  いすゞ自動車（株）

• 手塚 裕康

  東京工業大学

• 里 達雄

  東京工業大学

書誌事項

タイトル別名

• Influence of Cu and Mg Addition on Mechanical Properties and Thermal Fatigue Life of Al-Si-Mg Cast Alloys for Cylinder Head
• シリンダヘッドヨウ Al Si Mgケイ チュウゾウ ゴウキン ノ キカイテキ セイシツ ト ネツ ヒロウ ジュミョウ ニ オヨボス Cu Mg テンカ ノ エイキョウ

抄録

  As an attempt to optimize materials for diesel engine cylinder heads, the chemical composition and heat treatment procedure of Al-Si-Mg alloy were studied. The relation between additional elements and mechanical properties (tensile strength and elongation) was investigated on AC4C aluminum alloys containing additional Cu or Mg, and the optimum chemical composition was determined. In composition ranges within 0.6 mass%Mg or 1.0 mass%Cu, it was found that Cu or Mg addition increased tensile strength without deterioration of elongation, and also increased high cycle fatigue strength. However, thermal fatigue tests indicated that Cu addition affected thermal fatigue life. Especially thermal fatigue life markedly decreased with increasing plastic strain. In addition, excessive aging of Cu addition alloys resulted in increased thermal fatigue life. This is because the thermal fatigue life corresponding to plastic strain increases in excessively aged alloy.

収録刊行物

• 鋳造工学

  鋳造工学 75 (6), 397-402, 2003

  公益社団法人 日本鋳造工学会

キーワード

• diesel engine
• cylinder head
• thermal fatigue
• Al-Si-Mg alloys
• AC4C

詳細情報

• CRID: 1390001206506041728
• NII論文ID: 130004556474
• NII論文ID: 10013907567
• NII書誌ID: AN10514770
• DOI: 10.11279/jfes.75.397
• COI: 1:CAS:528:DC%2BD3sXmsFGnsLw%3D
• ISSN: 21855374
• ISSN: 13420429
• NDL書誌ID: 6615747
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6615747
• 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