Relationship between porosity and interface fracture on aluminum foam sandwich with dense steel face sheets fabricated by friction stir processing route

Takao Utsunomiya, Nobuyuki Ishii, Yoshihiko Hangai, Shinji Koyama, Osamu Kuwazuru, Nobuhiro Yoshikawa

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

An aluminum foam sandwich consisting of an aluminum foam core with two dense metallic face sheets is expected to be used as a lightweight structural component with good energy and vibration absorption properties. In this study, by the friction stir processing route, aluminum foam sandwiches with porosity of approximately 5585% and metallurgical bonding between the aluminum foam and dense steel sheets were successfully fabricated. Moreover, tensile tests were carried out on the fabricated aluminum foam sandwiches. Through the test results, it was shown that, although a brittle intermetallic compound layer exists at the interface, fracture in the aluminum foam part with porosity above 65% occurs and the bonding strength of the interface is higher than the tensile strength of the aluminum foam.

Original languageEnglish
Pages (from-to)1674-1679
Number of pages6
JournalMaterials Transactions
Volume53
Issue number9
DOIs
Publication statusPublished - 2012

Fingerprint

Steel
Aluminum
foams
Foams
friction
Porosity
routes
steels
Friction
aluminum
porosity
Processing
energy absorption
Steel sheet
tensile tests
tensile strength
Intermetallics
intermetallics
Tensile strength
vibration

Keywords

  • Bonding
  • Composites
  • Foaming
  • Friction stir processing
  • Porous material
  • Sandwitch panel
  • Tensile strength

ASJC Scopus subject areas

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

Cite this

Relationship between porosity and interface fracture on aluminum foam sandwich with dense steel face sheets fabricated by friction stir processing route. / Utsunomiya, Takao; Ishii, Nobuyuki; Hangai, Yoshihiko; Koyama, Shinji; Kuwazuru, Osamu; Yoshikawa, Nobuhiro.

In: Materials Transactions, Vol. 53, No. 9, 2012, p. 1674-1679.

Research output: Contribution to journalArticle

Utsunomiya, Takao ; Ishii, Nobuyuki ; Hangai, Yoshihiko ; Koyama, Shinji ; Kuwazuru, Osamu ; Yoshikawa, Nobuhiro. / Relationship between porosity and interface fracture on aluminum foam sandwich with dense steel face sheets fabricated by friction stir processing route. In: Materials Transactions. 2012 ; Vol. 53, No. 9. pp. 1674-1679.
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