Sap concept, in situ formed Al-Al2O3 composites - The effect of powder size on composite's mechanical properties

Martin Balog*, Frantisek Simancik, Martin Walcher, Walter Rajner, Cecilia Poletti

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study twenty-five gas atomized Al 99.5% powders of nine producers with particle size below 10 μm were hot extruded. Used powders represent the finest Al powder fractions offered on the market, available in quantities acceptable for industrial use. The effect of powder particle size, particle surface area, oxygen content and atomization atmosphere on the microstructure and mechanical properties of extruded profiles was studied by means of BET, oxygen measurement, SEM, EBSD and tensile tests. The individual strengthening mechanisms operating in the microstructure and its effect on thermal stability of extruded profiles are described.

Original languageEnglish
Title of host publicationProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2011
PublisherEuropean Powder Metallurgy Association
Volume2
ISBN (Print)9781899072200
Publication statusPublished - 2011
Externally publishedYes
EventEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2011 - Barcelona, Spain
Duration: 9 Oct 201112 Oct 2011

Conference

ConferenceEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2011
CountrySpain
CityBarcelona
Period9/10/1112/10/11

Keywords

  • Aluminium
  • Extrusion
  • Metal matrix composites
  • Powder metallurgy
  • SAP

ASJC Scopus subject areas

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

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