Unidirectionally Solidified Structures of Pure Aluminum Ingots with Small Additions of Ti and B

• MOTEGI Tetsuichi

  Chiba Institute of Technology

• OHNO Atsumi

  Chiba Institute of Technology

Bibliographic Information

Other Title

• 微量のＴｉおよびＢを添加した純アルミニウム鋳塊の一方向凝固組織について
• ビリョウ ノ Ti オヨビ B オ テンカシタ ジュン アルミニウム チュウカ

Abstract

Dilute Al-Ti alloys containing Ti up to 0.13% and Al-Ti-B alloys containing Ti and B up to 0.05% and up to 0.05% respectively were unidirectionally solidified. A columnar crystal consists of a cellular dendrite, and an equiaxed crystal consists of a free dendrite. No foreign particles such as TiC, TiB₂ and TiAl₃ are observed in the center of each crystal. If the unidirectionally solidified ingot entirely having columnar crystals is remelted and cast fine equiaxed crystals appear. Fine crystals nucleated on the top of the mold wall have a granular shape because of solute segregation of Ti and B. Granular crystals easily separate from the mold wall and form free dendrite crystals.

Journal

• Journal of Japan Institute of Light Metals

  Journal of Japan Institute of Light Metals 31 (5), 325-333, 1981

  The Japan Institute of Light Metals

Keywords

• Materials Chemistry
• Metals and Alloys
• Mechanical Engineering
• Mechanics of Materials

Details

• CRID: 1390001206337169664
• NII Article ID: 130004208228
• NII Article ID: 10004013575
• NII Book ID: AN00069773
• DOI: 10.2464/jilm.31.325
• ISSN: 18808018
• ISSN: 04515994
• NDL BIB ID: 2314030
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I2314030
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed