development and characterisation of aluminium matrix nanocomposites alsi10mg/mgal2o4 by laser powder bed fusion

Clicks: 340
ID: 191486
2018
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Abstract
Recently, additive manufacturing techniques have been gaining attention for the fabrication of parts from aluminium alloys to composites. In this work, the processing of an AlSi10Mg based composite reinforced with 0.5% in weight of MgAl2O4 nanoparticles through laser powder bed fusion (LPBF) process is presented. After an initial investigation about the effect of process parameters on the densification levels, the LPBF materials were analysed in terms of microstructure, thermo-mechanical and mechanical properties. The presence of MgAl2O4 nanoparticles involves an increment of the volumetric energy density delivered to the materials, in order to fabricate samples with high densification levels similar to the AlSi10Mg samples. However, the application of different building parameters results in modifying the size of the cellular structures influencing the mechanical properties and therefore, limiting the strengthening effect of the reinforcement.
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marchese2018metalsdevelopment Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Giulio Marchese;Alberta Aversa;Massimo Lorusso;Diego Manfredi;Flaviana Calignano;Mariangela Lombardi;Sara Biamino;Matteo Pavese
Journal seminars in cancer biology
Year 2018
DOI
10.3390/met8030175
URL
http://www.mdpi.com/2075-4701/8/3/175
Keywords
Nanocomposites mechanical properties scanning electron microscopy additive manufacturing aluminium alloys laser powder bed fusion metallurgy

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