Abstract
The present study aims at developing a theoretical model for sliding wear analysis of the cobalt metal powder reinforced Aluminum (Al7075) alloy composites and perform an experimental run for validation of the theoretical model. The alloy composites are fabricated in high temperature vacuum centrifugal casting set-up by varying the cobalt metal powder to analyze the effect of different weight fraction (0, 0.5, 1.5, and 2.0 wt.-% cobalt metal powder) of cobalt metal powder on wear and coefficient of friction analysis under different operating conditions(such as Normal load (20N-80N), Sliding speed (0.25m/s-1.25m/s) and Sliding distance (250 m-1250 m).Finally, the specificwear rate of the alloy composites is studied experimentally to get the wear rate and coefficient of friction of the alloy composites. At the end, the worn surface morphology of the alloy composites is studied by using scanning electron microscopic to understand the type of wear failure in different operating medium.
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Abbreviations
- HV:
-
Vickers hardness
- NIMP:
-
Nickel metal powder
- TIMP:
-
Titanium metal powder
- COMP:
-
Cobalt metal powder
- CRMP:
-
Chromium metal powder
- AACO-0:
-
Unfilled Aluminum alloy composite
- AACO-0.5:
-
Aluminum alloy composite reinforced with 0.5% Cobalt metal powder
- AACO- 1:
-
Aluminum alloy composite reinforced with 1 % Cobalt metal powder
- AACO-1.5:
-
Aluminum alloy composite reinforced with 1.5% Cobalt metal powder
- AACO-2.0:
-
Aluminum alloy composite reinforced with 2 % Cobalt metal powder
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Acknowledgments
The authors acknowledge financial support drawn from Malaviya National Institute of Technology Jaipur, Jaipur-302017, Rajasthan INDIA. The authors also acknowledge the facilities provided by Material Research Center and Advanced Research Centre for Tribology for characterization and experimentation.
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Kumar, A., Patnaik, A. & Bhat, I.K. Tribology Analysis of Cobalt Particulate Filled Al 7075 Alloy for Gear Materials: a Comparative Study. Silicon 11, 1295–1311 (2019). https://doi.org/10.1007/s12633-018-9920-2
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DOI: https://doi.org/10.1007/s12633-018-9920-2