Characterisation of a novel Sc and Zr modified Al–Mg alloy fabricated by selective laser melting

Shirley Shi, Paul Rometsch, Kun Yang, Frank Palm, Xinhua Wu

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Abstract

Correlations between densification, hardness and electrical conductivity were investigated over a wide range of applied volumetric energy densities (E) for an Al–Mg–Sc–Zr alloy fabricated by selective laser melting. It is shown that porosity dominates electrical conductivity in the low E region up to 77 J/mm3, while the contribution of solute in solution is more significant in the medium–high E region. Reasons for these differences are discussed and a linear relationship between electrical conductivity and densification in the absence of solute effects is presented.

Original languageEnglish
Pages (from-to)347-350
Number of pages4
JournalMaterials Letters
Volume196
DOIs
Publication statusPublished - 1 Jun 2017

Keywords

  • Electrical conductivity
  • Metals and alloys
  • Microstructure
  • Nuclear magnetic resonance
  • Scandium
  • Selective laser melting

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