Proceedings of the Institution of Mechanical Engineers Part N Journal of Nanoengineering and Nanosystems · 2013 · 14 citations · 3 references
Materials EngineeringMaterials ScienceEngineeringPowder MetallurgyMechanical PropertiesCastingNanosized PowdersMechanical EngineeringAlloy DesignCast Irons Gg15Metal FormingAlloy Alsi7mgMetal MeltAlloy CastingMetal ProcessingMicrostructureAlloys
The influence of nanopowders on the structure and mechanical properties was investigated in castings of aluminium alloy AlSi7Mg, grey cast irons GG15 and GG25 and steel GX120Mn12. Mixtures of SiC, TiCN and Y 2 O 3 nanopowders were used. These mixtures or nanocompositions were coated with Cu, Cr, Ni and Fe metal protectors in order to improve wetting of the metal melt. Introducing small amounts of nanocompositions (less than 0.1 wt%) into the melt was found to refine the microstructure and improve the mechanical properties of the castings.
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