Microstructure and wear characteristics of Si particulate reinforced Al matrix composites

Suk Jin Song, Do Hyang Kim, Jun Su Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In order to obtain a homogeneous distribution of fine Si particles in aluminium matrix and thus to improve the adaptability of Al-Si alloy for aerospace and automobile applications, Si particulate reinforced aluminium matrix composites have been processed by using powder metallurgy method. The Si pariticulates with 20-40 μm size and Al alloy powders were mixed, degassed and extruded at 350°C or 400°C depending on the composition of the matrix alloy. The microstructural characteristics of the composites such as interfacial stability at high temperatures have been investigated by various experimental techniques. Wear properties of the composites were investigated by using a pin-on-disk type wear tester. The results were compared with these obtained from the conventionally cast hypereutectic Al-Si alloys and discussed in terms of the observed microstructural characteristics and physical properties such as hardness and tensile properties.

Original languageEnglish
Pages (from-to)216-223
Number of pages8
JournalMetals and Materials International
Volume3
Issue number4
DOIs
Publication statusPublished - 1997

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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