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Complete columnar-to-equiaxed transition and significant grain refinement in an aluminium alloy by adding Nb particles through laser powder bed fusion

Materials ScienceMaterials EngineeringEngineeringPowder MetallurgyMechanical EngineeringAlloy DesignNb ParticlesComplete Columnar-to-equiaxed TransitionLaser PowderAlloy PhaseMicrostructureMetal Processing