Structure and mechanical properties of an advanced aluminium alloy AlSi10MgCu(Ce,Zr) produced by selective laser melting

Abstract The article presents investigation of structure and mechanical properties of an advanced aluminum alloy Al-10Si-0.9Cu-0.7Mg-0.3Zr-0.3Ce, produced by selective laser melting. By means of SEM, TEM and EDX-analysis some aspects of the alloy microstructure in as-built and thermal treated states are discussed. The alloy has high level of strength (UTS > 390 MPa, YS > 330 MPa) in T6-state, providing good elongation (El. > 6%). In annealed state the alloy also provides good combination of mechanical properties (UTS > 350 MPa, YS > 240 MPa, El.> 9%).