Fabrication of lotus-type porous Al-Ti alloys using the continuous casting technique

Tae Bum Kim, Shinsuke Suzuki, Hideo Nakajima

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Porous Al-5mass%Ti alloys were fabricated using a continuous casting technique in a hydrogen atmosphere, and the effects of transfer velocity (V) and the peritectic solidification process on the pore morphology and matrix microstructure were examined. In the case of V = 0.5 mm/min, columnar microstructure and directional pores grow along the transfer direction. The Al3Ti phases are formed in localized regions of matrix part, and however, they do not suppress the growth of directional pores in the other regions. In the case of 5.0 mm/min, because needle-like Al3Ti phases grow along the transfer direction, directional pores can grow between them. On the other hand, in the case of 10.0 mm/min, spherical pores surrounded by equiaxed peritectic microstructure and homogeneously distributed Al 3Ti phases are formed, because the primary α -Al and Al 3Ti phases probably prevent the growth of directional pores.

本文言語English
ホスト出版物のタイトルEco-Materials Processing and Design XI, ISEPD-11
出版社Trans Tech Publications Ltd
ページ207-210
ページ数4
ISBN(印刷版)0878492445, 9780878492442
DOI
出版ステータスPublished - 2010
外部発表はい

出版物シリーズ

名前Materials Science Forum
658
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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