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Evaluation of Copper-Based Alloy (C93200) Composites Reinforced with Marble Dust Developed by Stir Casting under Vacuum Environment

1
Department of Mechanical Engineering, Madhav Institute of Technology and Science, Gwalior-474005, India
2
Department of Mechanical-Mechatronics Engineering, The LNM Institute of Information Technology, Jaipur-302031, India
3
Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, Bangladesh
4
Mechanical Engineering, Imperial College London, Exhibition Rd., London SW7 2AZ, UK
5
Mechanical Engineering, School of Engineering, University of Birmingham, Birmingham B15 2TT, UK
*
Author to whom correspondence should be addressed.
Materials 2019, 12(10), 1574; https://doi.org/10.3390/ma12101574
Received: 10 April 2019 / Revised: 10 May 2019 / Accepted: 11 May 2019 / Published: 14 May 2019
(This article belongs to the Section Manufacturing Processes and Systems)
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Abstract

Copper-based alloy (C93200) composites reinforced with a different weight percentage of marble dust particles (1.5, 3, 4.5, and 6 wt.%) were developed by stir casting method under vacuum environment. By using this type of reinforcement, it was possible to detect a suitable material for bearing applications. The manufactured material was characterized for its mechanical properties using a micro-hardness tester. A universal INSTRON-5967 machine was used to detect the yield and tensile strength. Further the hardness features were measured using a Walter Uhl model machine, whereby the wear characteristics were simulated under the pin-on-disc tribometer under different working conditions in ambient temperature (23 °C). Next, the preference selection index (PSI) technique that considers multi-criteria decision-making was proposed to validate which material was the best candidate. For the selection of material criteria, some specific material intrinsic properties—such as, density, void fraction, hardness resistance along with tensile, compressive, and flexural strength—were proposed and the surface characteristics linked to friction coefficients along wear properties. It was found that the novel composite material containing 4.5 wt.% of marble dust provided the best combination of properties and is a suitable candidate material for bearing applications. View Full-Text
Keywords: C93200 alloy; marble dust; PSI method; multi-criteria decision-making C93200 alloy; marble dust; PSI method; multi-criteria decision-making
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Rajak, S.K.; Aherwar, A.; Unune, D.R.; Mia, M.; Pruncu, C.I. Evaluation of Copper-Based Alloy (C93200) Composites Reinforced with Marble Dust Developed by Stir Casting under Vacuum Environment. Materials 2019, 12, 1574.

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