Effect of magnesium content on tensile strength of carbon-fiber-reinforced aluminum-magnesium alloy composite wires fabricated by ultrasonic infiltration method

Tadashi Matsunaga, Kenji Matsuda, Tomei Hatayama, Kenji Shinozaki, Shigekazu Amanuma, Makoto Yoshida

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

M40J carbon fiber reinforced aluminum-2.4, 4.7 and 10mass% magnesium alloy composite wires were continuously fabricated using ultrasonic infiltration method. The tensile strength of the composites varied from 800 to 1200 MPa caused by change in cross sectional area, volume fraction of fibers and so on. Moreover, their tensile strength decreased with the increase in Mg content in aluminum. In the case of the Al-10mass%Mg matrix composites, Al 3Mg 2 intermetallic compound was found on the surface of fibers and continuously formed between fibers in the matrix like bridging. The decrease in the strength would be caused by premature fracture and bridging of the intermetallic compound between fibers. As the result, the tensile strength of the CF/Al composites was controlled by cross sectional area and amount and shape of Al 3Mg 2 intermetallic compound in aluminum matrix.

Original languageEnglish
Pages (from-to)105-111
Number of pages7
JournalKeikinzoku/Journal of Japan Institute of Light Metals
Volume56
Issue number2
DOIs
Publication statusPublished - 2006 Feb 1

Keywords

  • Aluminum
  • Carbon fiber
  • MMC
  • Magnesium
  • Ultrasonic vibration

ASJC Scopus subject areas

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

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