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Strengthening of Al-4.5%Cu alloy with the addition of Silicon Carbide and Bamboo Leaf Ash

Praveen Kumar Bannaravuri (Department of Mechanical Engineering, National Institute of Technology Manipur, Imphal, India)
Anil Kumar Birru (Department of Mechanical Engineering, National Institute of Technology Manipur, Imphal, India)

International Journal of Structural Integrity

ISSN: 1757-9864

Article publication date: 14 March 2019

Issue publication date: 3 April 2019

122

Abstract

Purpose

The purpose of this paper is to determine the use of BLA along with SiC as economical reinforcements to enhance the mechanical behavior of hybrid composite. The purpose of this research is the development of cost-effective aluminum hybrid metal matrix composites.

Design/methodology/approach

The present research work investigation evaluated the mechanical properties of Al-4.5%Cu alloy, Al-4.5Cu/10SiC, Al-4.5Cu/10SiC/2BLA and Al-4.5Cu/10SiC/4BLA composites by the Stir casting method. The fabricated composites were analyzed using optical microscopy (OM), scanning electron microscopy (SEM), and hardness and tensile test.

Findings

The microstructure modification with the addition of reinforcement particles in the matrix alloy and clear interface in between matrix and particles are observed. The density of the composite increased with the addition of SiC and decreased with the addition of BLA in comparison with that of matrix alloy. The hardness and tensile strength of the single-reinforced composite and hybrid composites improved with the addition of reinforcement particles. The strengthening of composites was due to load-bearing capacity of reinforcement particles over the matrix alloy and increased dislocation density of composites materials. The tensile failure mechanism of the composites is reveled with SEM analysis.

Practical implications

The papers reports the development of cost-effective and light weight aluminum hybrid composites with remarkable enhancement in the mechanical and tribological properties with the addition of BLA as economical reinforcement along with SiC.

Originality/value

The density, hardness and tensile values of fabricated aluminium composites were presented in this paper for the use in the engineering applications where the weight and cost are consider as a primary factors.

Keywords

Citation

Bannaravuri, P.K. and Birru, A.K. (2019), "Strengthening of Al-4.5%Cu alloy with the addition of Silicon Carbide and Bamboo Leaf Ash", International Journal of Structural Integrity, Vol. 10 No. 2, pp. 149-161. https://doi.org/10.1108/IJSI-03-2018-0018

Publisher

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Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

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