HRTEM and HAADF-STEM of precipitates at peak ageing of cast A319 aluminium alloy

Amporn Wiengmoon, John T.H. Pearce, Torranin Chairuangsri, Seiji Isoda, Hikaru Saito, Hiroki Kurata

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

High-resolution transmission electron microscopy (HRTEM) and high-angle annular-dark-field scanning transmission electron microscopy (HAADF-STEM) were applied to investigate the precipitates formed during age hardening at 170 ± 5 °C for up to 48. h of cast A319 aluminium alloy (Al-4.93. wt%Si-3.47. wt%Cu). The precipitates at the peak-aged condition have been identified as mainly θ" together with a smaller amount of θ'. It is proposed that the θ" is responsible for hardening at peak ageing at 170 °C of the cast A319 aluminium alloy.

Original languageEnglish
Pages (from-to)32-36
Number of pages5
JournalMicron
Volume45
DOIs
Publication statusPublished - Feb 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Materials Science(all)
  • Physics and Astronomy(all)
  • Cell Biology

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