Optimization of process parameters in spark plasma sintering Al6061 and Al2124 aluminum alloys

Abdullah Khalil*, Abbas Saeed Hakeem, Nouari Saheb

*Corresponding author for this work

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

20 Scopus citations

Abstract

In the present study, Al2124 and Al6061 alloys were consolidated through spark plasma sintering at 400, 450 and 500 0C using three different combinations of pressure and time (35 MPa -20 min, 40 MPa - 15 min and 45 MPa - 10 min). The microstructure, density and hardness of sintered samples were evaluated. Full densification and the highest hardness were obtained at 450 °C. Beyond 450 °C, there was only small change of hardness. Densification of specimens was less sensitive to the applied pressure. However, the lowest pressure of 35 MPa led to the highest hardness. At higher temperatures, the increase in pressure resulted in grain growth which decreased the hardness.

Original languageEnglish
Title of host publicationMechatronics and Materials Processing I
Pages1517-1522
Number of pages6
DOIs
StatePublished - 2011

Publication series

NameAdvanced Materials Research
Volume328-330
ISSN (Print)1022-6680

Keywords

  • Aluminum alloys
  • Density
  • Grain growth
  • Hardness
  • Spark plasma sintering

ASJC Scopus subject areas

  • General Engineering

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