Effect of alloying elements on in-plane ordering and disordering of solute clusters in Mg-based long-period stacking ordered structures: A first-principles analysis

Hajime Kimizuka, Marco Fronzi, Shigenobu Ogata

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

Using density functional theory, we characterized the in-plane binding between L12-type solute clusters in Mg-M-RE (M = Al, Zn; RE = Y, Gd) long-period stacking ordered (LPSO) structures. The difference between the Al and Zn concentrations within the clusters determines whether the intercluster interaction is attractive or repulsive. Incomplete in-plane ordering observed experimentally in Mg-Zn-Y LPSO structures was suggested to be caused by the unlinked nature of the clusters owing to their significant inward contraction.

Original languageEnglish
Pages (from-to)594-597
Number of pages4
JournalScripta Materialia
Volume69
Issue number8
DOIs
Publication statusPublished - 2013 Oct
Externally publishedYes

Keywords

  • Density functional theory
  • Intercluster interaction
  • L1-type cluster
  • LPSO
  • Magnesium alloys

ASJC Scopus subject areas

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

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