Mechanical properties of sic whisker reinforced aluminum alloys

Masaki Yoshino, Hiroyoshi Iwanari, Mitsuo Niinomi, Toshiro Kobayashi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Microstructures and mechanical properties of silicon carbide whisker (SiCw) reinforced aluminum alloys fabricated by the pressure casting method were investigated. The SiCw reinforced aluminum alloys fabricated under the pressure of 90 MPa are superior to those fabricated under the lower pressure than round 90 MPa in the mechanical properties. The failure of SiCw reinforced aluminum alloys is associated with the failure of SiCw and the interface decohesion between whiskers and matrix. These composites are strengthened by increasing the interface bonding between SiCw and matrix, i.e., the interface cohesion is strengthened by the accelerating the interface reaction. The proper addition of the highly reactive lithium to aluminum matrix makes the interface cohesion tight and results in lower density and greater strength composites.

Original languageEnglish
Pages (from-to)593-599
Number of pages7
Journaljournal of japan institute of light metals
Volume38
Issue number10
DOIs
Publication statusPublished - 1988

Keywords

  • Al-Li alloys
  • SiC whisker reinforced aluminum alloys
  • mechanical properties
  • pressure casting method

ASJC Scopus subject areas

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

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