Effect of ceramic reinforcement on the ageing behaviour of an aluminium alloy

M. J. Hadianfard, Yiu Wing Mai, J. C. Healy

Research output: Journal article publicationJournal articleAcademic researchpeer-review

45 Citations (Scopus)

Abstract

The effect of a 20vol % alumina microsphere particulate on the age-hardening characteristics of a 6061 Al matrix composite was investigated - based on microhardness, electrical resistivity and X-ray mapping - and the composite is compared to the unreinforced 6061 Al alloy. It is shown that this ceramic reinforcement can affect the age-hardening behaviour of the matrix alloy by significantly accelerating the kinetics of precipitation. This acceleration is related to a decrease in nucleation time and to an increase in the precipitate-growth rate. The relative amounts of age-hardened precipitates are also observed to be affected by reinforcement addition.

Original languageEnglish
Pages (from-to)3665-3669
Number of pages5
JournalJournal of Materials Science
Volume28
Issue number13
DOIs
Publication statusPublished - Jul 1993
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Science (miscellaneous)
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics

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