Manufacturing of functionally graded porous aluminum of dissimilar aluminum alloy

Yoshihiko Hangai, Shinji Koyama, Takao Utsunomiya, Makoto Hasegawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Porous aluminum is a multifunctional material with lightweight and high energy absorption properties. In this study, using A1050 and A6061 (Al-Si-Mg aluminum alloy), functionally graded porous aluminum was fabricated by friction stir processing (FSP) route precursor method. First, A1050 and A6061 precursors were fabricated separately by FSP route. Next, these precursors were bonded by friction stir welding (FSW) and "composite graded precursor" was fabricated. Finally, precursor was heattreated for foaming and A1050-A6061 functionally graded porous aluminum was fabricated. By EPMA observation, existence of Mg atoms was gradually changing at the bonding region. It was shown that seamless functionally graded porous aluminum can be fabricated by FSP route.

Original languageEnglish
Pages (from-to)285-287
Number of pages3
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume74
Issue number4
DOIs
Publication statusPublished - 2010 Apr

Keywords

  • Aluminum
  • Foam
  • Friction stir processing
  • Functionally graded materials
  • Porous metals
  • Precursor

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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