Microstructure and mechanical properties of a die-cast Mg-9Al alloy containing oxygen atoms

S. W. Kang, H. Kang, D. H. Bae

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, the microstructural features and mechanical properties of a high-pressure die-cast (DC) Mg-9Al alloy containing oxygen atoms (Mg-O-9Al alloy) were characterized. The oxygen atoms promoted the formation of nucleation sites of α-Mg under high pressure, including fine cells (12–13 μm), and reduced the number of defect bands compared to the DC Mg-9Al alloy (14–15 μm). The relation between hardness and phase spacing indicated that the dispersion strengthening of the β-phase was dominant. The DC Mg-O-9Al alloy exhibited enhanced tensile properties as compared to the DC Mg-9Al alloy.

Original languageEnglish
Pages (from-to)16-18
Number of pages3
JournalMaterials Letters
Volume219
DOIs
Publication statusPublished - 2018 May 15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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