An Experimental Study on Multi-Criteria Parameters Optimization of Process for Al6351/SiC/Gr Metal Matrix Composites Using AHP-TOPSIS Approach

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nThis is an unedited manuscript accepted for publication and provided as an Article in Press for early access at the author’s request. The article will undergo copyediting, typesetting, and galley proof review before final publication. Please be aware that errors may be identified during production that could affect the content. All legal disclaimers of the journal apply.n

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Year : 2025 [if 2224 equals=””]30/08/2025 at 12:03 PM[/if 2224] | [if 1553 equals=””] Volume : 13 [else] Volume : 13[/if 1553] | [if 424 equals=”Regular Issue”]Issue : [/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] 05 | Page : 303 319

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    Sneha H. Dhoria, K. Venkata Subbaiah, V. Durga Prasada Rao, M. Zubairuddin, Md. Ahasan, K.Durga Hemanth Kumar,

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  1. Research Scholar, Senior Professor, Professor, Assistant Professor, Associate Professor, Assistant Professor, Department of Mechanical Engineering, Andhra University, Visakhapatnam, Department of Mechanical Engineering, Andhra University, Visakhapatnam, Department of Mechanical Engineering, SRKR Engineering College, Bhimavaram, Department of Mechanical Engineering, Aditya University, Surampalem, Department of Mechanical Engineering, Aditya University, Surampalem, Department of Mechanical Engineering, SRKR Engineering College, Bhimavaram, Andhra Pradesh, Andhra Pradesh, Andhra Pradesh, Andhra Pradesh, Andhra Pradesh, Andhra Pradesh, India, India, India, India, India, India

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Abstract

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nThis research focuses on optimizing the process parameters of Wire Electrical Discharge Machining (WEDM) for a hybrid Metal Matrix Composite (MMC) comprising Al6351 aluminum alloy reinforced with 4% SiC and 6% graphite (Gr), fabricated via squeeze casting. This technique enables the formation of dense, defect-free composites with uniform reinforcement distribution, enhancing both mechanical properties and structural integrity. Microstructural characterization using Scanning Electron Microscopy (SEM) confirmed the even dispersion and bonding of reinforcements. The expected phases were confirmed by X-ray diffraction (XRD) analysis, which also confirmed thermal compatibility by removing any undesired intermetallic formations. An L27 orthogonal array was employed to design the WEDM experiments by varying parameters such as pulse-on time, pulse-off time, wire feed, spark voltage, and wire tension. The performance was evaluated based on multiple responses—dimensional deviation (DD), surface roughness (SR), kerf width (K), and material removal rate (MRR).To achieve optimal machining conditions, the study used the AHP-TOPSIS technique. AHP was applied to assign objective weights to each response, while TOPSIS was used to determine the best parameter settings based on closeness coefficients. This hybrid approach effectively handles multi-response optimization and provides a more accurate and systematic alternative to conventional methods.nn

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Keywords: Al6351, SiC, Gr, Squeeze casting, WEDM, AHP-TOPSIS

n[if 424 equals=”Regular Issue”][This article belongs to Journal of Polymer and Composites ]

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How to cite this article:
nSneha H. Dhoria, K. Venkata Subbaiah, V. Durga Prasada Rao, M. Zubairuddin, Md. Ahasan, K.Durga Hemanth Kumar. [if 2584 equals=”][226 wpautop=0 striphtml=1][else]An Experimental Study on Multi-Criteria Parameters Optimization of Process for Al6351/SiC/Gr Metal Matrix Composites Using AHP-TOPSIS Approach[/if 2584]. Journal of Polymer and Composites. 24/07/2025; 13(05):303-319.

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How to cite this URL:
nSneha H. Dhoria, K. Venkata Subbaiah, V. Durga Prasada Rao, M. Zubairuddin, Md. Ahasan, K.Durga Hemanth Kumar. [if 2584 equals=”][226 striphtml=1][else]An Experimental Study on Multi-Criteria Parameters Optimization of Process for Al6351/SiC/Gr Metal Matrix Composites Using AHP-TOPSIS Approach[/if 2584]. Journal of Polymer and Composites. 24/07/2025; 13(05):303-319. Available from: https://journals.stmjournals.com/jopc/article=24/07/2025/view=0

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Volume 13
[if 424 equals=”Regular Issue”]Issue[/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] 05
Received 01/04/2025
Accepted 13/05/2025
Published 24/07/2025
Retracted
Publication Time 114 Days

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