Fabrication and analysis of AA6082/Si3N4 and AA6082/SiC composites
International Journal of Structural Integrity
ISSN: 1757-9864
Article publication date: 28 October 2019
Issue publication date: 18 March 2020
Abstract
Purpose
Sound microstructure components are necessary for reliability and safety; hence, these components are used in aircraft, satellite, automobiles and ships, where many commercial alloys are not suitable. The paper aims to discuss this issue.
Design/methodology/approach
AA6082/Si3N4 and AA6082/SiC composites were fabricated using the stir-casting process considering 5, 10 and 15 vol.% of reinforcement particles. Density and porosity of AA6082/Si3N4 and AA6082/SiC composites were calculated. Characterization was done using an X-ray (EDX) detector, attached to SEM. The effect of addition of Si3N4 and SiC particulates in the AA6082 was investigated.
Findings
Results showed that Si3N4 and SiC particulates had good wettability with AA6082 and were uniformly distributed in AA6082 matrix. No adverse effects of reactions were noticed in the microstructure of AA6082/Si3N4 and AA6082/SiC composites.
Research limitations/implications
AA6082 with more than 15 vol.% of Si3N4 and AA6082/SiC reinforcement particles do not find industrial application where high hardness and tensile strength are required.
Practical implications
Components made from AA6082/Si3N4 and AA6082/SiC composites find their application where high hardness with better tensile strength is required.
Social implications
Naturally and locally available materials are utilized for fabrication.
Originality/value
Little work is available in the literature on fabrication and characterization of AA6082/Si3N4 and AA6082/SiC composites. The authors have identified the process parameters at which proper fabrication is done and sound microstructure is obtained.
Keywords
Citation
Bhushan, R.K. and Sharma, D. (2020), "Fabrication and analysis of AA6082/Si3N4 and AA6082/SiC composites", International Journal of Structural Integrity, Vol. 11 No. 2, pp. 277-285. https://doi.org/10.1108/IJSI-06-2019-0058
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited