Title: An anisotropy study on microstructure and tensile strength of silicon carbide and graphite particle reinforced AZ91D hybrid composite

Authors: A. Packia Antony Amalan; N.M. Sivaram

Addresses: Department of Mechanical Engineering, National Institute of Technology Puducherry, Karaikal – 609 609, India ' Department of Mechanical Engineering, National Institute of Technology Puducherry, Karaikal – 609 609, India

Abstract: This present study aimed to evaluate the anisotropy property on microstructure and tensile strength of produced hybrid composite. To produce the hybrid composite, SiC (5 wt.%) and Gr (1 wt.%) were added with AZ91D alloy. The samples were prepared through the stir-casting. The samples in as cast and ageing heat treated (T6) conditions were evaluated for microstructural, ultimate tensile strength (UTS), yield strength (YS), and ductility. Scanning electron microscope (SEM) was applied to evaluate the microstructural and fracture behaviour of the materials. Tensile stress-strain curves of the prepared samples were studied both in longitudinal and transverse directions. In the longitudinal direction, the maximum obtained UTS, YS and ductility are 171 MPa, 69 MPa and 5.47%; similarly, 116 MPa, 43 MPa and 4.33% respectively obtained in the transverse direction heat-treated composite (T6). Maximum reported anisotropy on UTS was 35.94% for as-cast composite and on YS was 37.68% for T6-composite.

Keywords: magnesium; tensile properties; hybrid composite; anisotropy; longitudinal direction; transverse direction.

DOI: 10.1504/IJMATEI.2023.130130

International Journal of Materials Engineering Innovation, 2023 Vol.14 No.2, pp.136 - 148

Received: 25 Jan 2022
Accepted: 15 Mar 2022
Published online: 05 Apr 2023 *

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