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Metals and Materials

, Volume 3, Issue 4, pp 216–223 | Cite as

Microstructure and wear characteristics of si particulate reinforced al matrix composites

  • Suk-Jin Song
  • Do-Hyang Kim
  • Jun-Su Kim
Article
  • 61 Downloads

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.

Keywords

Wear Loss Show Scanning Electron Microscope Image Mg2Si Particle Aluminium Alloy Matrix Bright Field Transmission Electron Microscope Micrograph 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 1997

Authors and Affiliations

  • Suk-Jin Song
    • 3
  • Do-Hyang Kim
    • 1
  • Jun-Su Kim
    • 2
  1. 1.Department of Metallurgical Eng.Yonsei UniversitySeodaemun-ku, SeoulKorea
  2. 2.Material Research TeamHyundai Motor CompanyYongin-shi, Kyunggi-doKorea
  3. 3.Aerospace Div.Daewoo Heavy Industries LTD.Changwon, Kyongsangnam-doKorea

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