Grain refinement of an extruded Mg alloy via na microalloying

Nicole Stanford, Jessica R. Terbush, Mohan Setty, Matthew R. Barnett

Research output: Contribution to journalArticlepeer-review


The effect of 0.3 wt pct Na on the microstructure of extruded alloy Mg-2Sn-1Zn is examined. We report that Na stabilizes the Mg2Sn phase, resulting in its precipitation during extrusion under conditions where a solid solution is otherwise expected. This effect appears to be thermodynamic in nature and is different from the kinetic enhancement of low- temperature aging reported by Mendis et al. [Phil. Mag. Letters, 86 (2006), 443]. The precipitates of the current study enable useful refinement of the grain size.

Original languageEnglish (US)
Pages (from-to)2466-2469
Number of pages4
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Issue number6
StatePublished - Jun 1 2013
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys


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