Renjin J Bright, G. Selvakumar, P. Hariharasakthisudhan, M. Sumathi
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引用次数: 0
Abstract
This work studies the mechanical and quasi-static compression behaviour of AA6082/Meta-kaolin composites hybridized with nano-silicon nitride (Si 3 N 4 ) particles. Hybridization with nano-Si 3 N 4 particles was intended to improve the ductility of the composites. The composites were manufactured using an ultrasonication-assisted stir casting process. The weight fraction (wt.%) of Metakaolin was maintained as 7.5 wt.%, and the nano-Si 3 N 4 particles were added by varying their wt.% from 0.5 to 2.5 % at the increment of 0.5 %. A premixing technique was adopted to blend the Metakaolin and Si 3 N 4 reinforcements to improve their wettability and dispersion in the matrix. The tensile properties and microhardness of the composites improved with the incorporation of nano-Si 3 N 4 particles up to 1 wt.%. The compressive strength was higher for the AMC with 1.5 wt.% Si 3 N 4 . The workability of hybrid composites was studied by the cold upsetting process where the composites were subjected to quasi-static compression.
期刊介绍:
Kovove Materialy - Metallic Materials is dedicated to publishing original theoretical and experimental papers concerned with structural, nanostructured, and functional metallic and selected non-metallic materials. Emphasis is placed on those aspects of the science of materials that address:
the relationship between the microstructure of materials and their properties, including mechanical, electrical, magnetic and chemical properties;
the relationship between the microstructure of materials and the thermodynamics, kinetics and mechanisms of processes;
the synthesis and processing of materials, with emphasis on microstructural mechanisms and control;
advances in the characterization of the microstructure and properties of materials with experiments and models which help in understanding the properties of materials.