GRA & DFA Approach for Optimum Material Selection of Aluminium Metal Matrix Composites: A Comparative Study

Banavath Haritha Bai; Podaralla Nanda Kumar

doi:10.17485/IJST/v16i45.1837

Article

GRA & DFA Approach for Optimum Material Selection of Aluminium Metal Matrix Composites: A Comparative Study

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v16i45.1837

Year: 2023, Volume: 16, Issue: 45, Pages: 4244-4254

Original Article

GRA & DFA Approach for Optimum Material Selection of Aluminium Metal Matrix Composites: A Comparative Study

Banavath Haritha Bai^1*, Podaralla Nanda Kumar²

¹Research Scholar, Department of Mechanical Engineering, JNT University Anantapur, Ananthapuramu, 515002, Andhra Pradesh, India
²Professor, Department of Mechanical Engineering, N.B.K.R.Institute of Science and Technology, Vidyanagar, 524413, Andhra Pradesh, India

*Corresponding Author
Email: [email protected]

Received Date:22 July 2023, Accepted Date:29 October 2023, Published Date:06 December 2023

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objective: To draw the best combination of material parameters which gives optimized tensile strength, hardness and density properties of the aluminium metal matrix composite. Methods: In this study, three parameters (i.e., base material: Al5083, Al6082 and Al7075, reinforcement material: Fly-ash, SiC, and Al2O3, and percent of reinforcement material: 2.5%, 5% and 7.5%) were chosen, each with three levels, for the fabrication of AMMC samples in accordance with the Taguchi experimental design L9 in order to evaluate the tensile strength, hardness and density properties. With the considered set of material combinations, the AMMC samples are fabricated by using stir casting process. Findings: The optimum material combinations are chosen to get optimized properties of AMMC samples using GRA &DFA approach. Since, grey relational analysis is one of the foremost techniques applied when the nature of information is incomplete and uncertain. The experimental results are analyzed using GRA & DFA and drawn the optimum combination of material parameter such as Al6082 (base material), SiC (reinforcement material) and 7.5% (per cent of reinforcement material) with GRA and Al6082 (base material), SiC (reinforcement material) and 5% (per cent of reinforcement material) with DFA to get optimized properties of AMMC sample. It also found that the confirmation experiment results are adequate. Novelty: The use of fly-ash reinforcement as secondary reinforcement has widely increased due to their low cost and easily available as waste in thermal power plants. From the experimental results, it is observed that the tensile strength, hardness and density properties of aluminium alloy samples are improved due to the addition of reinforcement materials using stir casting process.

Keywords: DFA & GRA approach, Stir casting process, AMMC samples, Composite properties: Ultimate Tensile Strength, Brinel hardness, and Density

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Copyright

© 2023 Bai & Kumar. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)