Spark plasma sintering of Al6061 and Al2124 alloys

Nouari Saheb*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Recently spark plasma sintering has been proven to be effective non-traditional powder metallurgy technique to sinter fully dense materials in short sintering times at relatively low sintering temperatures and without a binder or pre-compaction step. Despite the importance of aluminum based alloys as candidate materials for applications in aerospace and automotive industries because of their light weight, very little work was dedicated to spark plasma processing of these materials. In this work we explored the possibility to process Al2124 and Al6061 alloys using spark plasma sintering technique. The sample were sintered for 20 minutes at 400, 450 and 500°C using fully automated FCT system spark plasma sintering equipment. A scanning electron microscope was used to analyze the microstructure of sintered samples. The density and Vickers microhardness of the sintered samples were measured using an electronic densimeter and a digital microhardness tester respectively. The hardness and density of the spark plasma sintered samples were reported as a function of sintering temperature. It was found that full density (100 % of the theoretical density) was achieved with sintering for 20 minutes at 450°C for Al6061 alloy and at 500°C for Al2124 alloy. The density and microhardness of the sintered samples increased with the increase of sintering temperature.

Original languageEnglish
Title of host publicationMaterials and Design
Pages1656-1660
Number of pages5
DOIs
StatePublished - 2011

Publication series

NameAdvanced Materials Research
Volume284-286
ISSN (Print)1022-6680

Keywords

  • Aluminum alloys
  • Powder metallurgy
  • Spark plasma sintering

ASJC Scopus subject areas

  • General Engineering

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