Investigation of manufacturing process of ADC12-A1050 porous aluminum by friction stir processing route

Yuichiro Ozeki, Yoshihiko Hangai, Takao Utsunomiya, Osamu Kuwazuru, Nobuhiro Yoshikawa

Research output: Contribution to journalArticlepeer-review


Recently, porous aluminum has attracted special interest as a new functional material. However, the application of porous aluminum remains limited due to high-cost fabrication and low productivity. To overcome these problems, the authors proposed a new fabrication method by using friction stir processing (i. e. FSP route precursor method). In this s t u d y, at first, the precursors of ADC12 and A1050 were fabricated by FSP route individually and those precursors were welded by friction stir welding (FSW). Moreover, by foaming the welded precursor, ADC12-A1050 porous aluminum was manufactured. Based on the cross-sectional images and X-ray CT images, porosity and pore structures were examined. Although ADC12-A1050 bonded precursor tends to foam from the part of ADC12, ADC12-A1050 porous aluminum with high porosity and high circularity can be manufactured under proper forming conditions.

Original languageEnglish
Pages (from-to)1008-1012
Number of pages5
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Issue number779
Publication statusPublished - 2011
Externally publishedYes


  • Aluminum alloy
  • Foaming
  • Friction stir welding
  • Functionally gradient materials
  • Porous material

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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