反応合成ＴｉＢ２粒子分散合金によるアルミニウムの凝固結晶粒微細化

• 小橋 真

  名古屋大学工学部材料プロセス工学科

• 塚原 広和

  名古屋大学大学院

• 長 隆郎

  名古屋大学工学部材料プロセス工学科

書誌事項

タイトル別名

• Grain refining of the aluminum alloy by reaction synthesized TiB2-dispersed alloys.
• ハンノウ ゴウセイ TiB2 リュウシ ブンサン ゴウキン ニヨル アルミニウ

抄録

Grain refining effects of TiB₂ dispersed alloys on aluminum were investigated. The TiB₂ dispersed alloys were synthesized by the reaction between titanium and AlB₂, and were added to molten aluminum at 1273 K as the grain refining agents. Excess amount of titanium or aluminum was added to starting materials of the reaction for the purpose of controlling the adiabatic temperatures. In this paper, (1) distribution of TiB₂ particles in molten aluminum, (2) effects of TiB₂ distribution on the grain size and (3) mechanical properties of grain-refined aluminum are mainly dealt with. Since aluminum oxide forms at the inter-particle regions of TiB₂, the dispersion of TiB₂ particles in molten aluminum is not homogeneous when aluminum was added in the starting materials. The excess titanium addition as a diluent, however, improves the distribution of TiB₂ particles. The average grain size of aluminum alloy is effectively reduced by adding the TiB₂ dispersed alloy. The grain refining effects are saturated by about 0.4 vol% addition of TiB₂ particles. The 0.2% proof stress of Al–2 mass%Mg alloy is improved by the grain refining.

収録刊行物

• 軽金属

  軽金属 46 (10), 473-478, 1996

  一般社団法人 軽金属学会

キーワード

• TiB₂
• grain refining
• aluminum
• mechanical property
• distribution of particles

詳細情報

• CRID: 1390282681312965760
• NII論文ID: 10003794555
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.46.473
• COI: 1:CAS:528:DyaK28XntVOltr8%3D
• ISSN: 18808018
• ISSN: 04515994
• NDL書誌ID: 4068281
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4068281
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可