Effect of B4C and waste porcelain ceramic particulate reinforcements on mechanical and tribological characteristics of high strength AA7075 based hybrid composite
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Published version
Author(s)
Aherwar, Amit
Patnaik, Amar
Pruncu, Catalin
Type
Journal Article
Abstract
In the present research, B4C (constant = 4 wt.%) and X-wt.% of waste Porcelain (P) (X = 0, 4, 8, 12 and 16) particulates, reinforced into AA7075 hybrid aluminium metal-ceramics composites (AMCs) manufactured using the stir casting route were investigated. Microstructures, compositional elements and worn surfaces were analysed to understand their tribological behaviour. The physical as well as mechanical strength of AMCs were also investigated experimentally. The obtained results highlight that the density of hybrid AMCs decreased by increasing the porcelain particulates in the composite matrix (AA7075+B4C). While, mechanical strength such as micro hardness, tensile strength and compressive strength were increased due to presence of the increased ceramic phases. Furthermore, the wear loss and values of coefficient of friction was reduced with porcelain content increments up to a critical value, after which it began to grow. Finally, in order to elucidate the wear mechanism of hybrid AMC, the worn surfaces were examined with FESEM. The obtained results indicated that the hybrid composite AA7075/4B4C containing 12 wt.% Porcelain particulates enabled the best wear properties.
Date Issued
2020-09
Date Acceptance
2020-07-02
Citation
Journal of Materials Research and Technology, 2020, 9 (5), pp.9882-9894
ISSN
2238-7854
Publisher
Elsevier
Start Page
9882
End Page
9894
Journal / Book Title
Journal of Materials Research and Technology
Volume
9
Issue
5
Copyright Statement
© 2020 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
https://www.sciencedirect.com/science/article/pii/S2238785420315015?via%3Dihub
Publication Status
Published online
Date Publish Online
2020-07-17