Microstructural development during aging of 2014 aluminum alloy composite

S. K. Varma, D. Salas, E. Corral, E. Esquivel, K. K. Chawla, R. Mahapatra

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

The 2014 aluminum alloy reinforced with 0.1 and 0.15 volume fraction of alumina particles (VFAP) have been solutionized for a range of time from 1.5 to 20 h at 813 K. The effect of solutionizing time (ST) on the age hardening response of the composites has been studied and compared with the characteristics exhibited by the monolith. The results indicate that increasing the ST decreases the time required to get the peak hardness (TPH) values in the monolith but the composites do not show a systematic monotonic behavior. The TPH values first decrease and then increase with an increase in ST at an aging temperature of 473 K for the composite. It has been speculated that the ST influences the concentration of quenched-in vacancies and continued heating may affect the bonding between particles and matrix which can generate additional dislocations throughout the solutionizing process due to curvature effects.

Original languageEnglish (US)
Pages (from-to)1855-1863
Number of pages9
JournalJournal of Materials Science
Volume34
Issue number8
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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