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• The design a periodic microstructural gradient by liquid powder bed fusion in an aluminium alloy is demonstrated

• The ultrafast cooling allows forming nanoscale features which structure and composition are established.

• Local strain hardening is evidenced in Al crystal in the vicinity of eutectic areas.

• Short range ordering of silicon together with the formation of Si nanocrystals is shown in former eutectic areas.

• Two populations of solute cluste

Source : Nanoscale periodic gradients generated by laser powder bed fusion of an AlSi10Mg alloy – ScienceDirect