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Open AccessArticle

Sensor-Assisted Assessment of the Tribological Behavioral Patterns of Al–SiCp Composites under Various Environmental Temperature Conditions

1
Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore - 641 021, Tamil Nadu, India
2
Department of Manufacturing Engineering, School of Mechanical Engineering, Vellore Institute of Technology (VIT), Vellore - 632 014, Tamil Nadu, India
3
School of Information Technology and Engineering, Vellore Institute of Technology (VIT), Vellore - 632 014, Tamil Nadu, India
4
Key Laboratory of Digital Signal and Image Processing of Guangdong Province, Department of Electronic Engineering, College of Engineering, Shantou University, Shantou 515063, Guangdong, China
*
Author to whom correspondence should be addressed.
Materials 2019, 12(23), 4004; https://doi.org/10.3390/ma12234004
Received: 11 November 2019 / Revised: 26 November 2019 / Accepted: 29 November 2019 / Published: 2 December 2019
(This article belongs to the Special Issue Tribology: Friction and Wear of Engineering Materials)
Currently, the use of sensors and supporting technologies has become indispensable in the assessment of tribological behavioral patterns of composites. Furthermore, the current investigation focused on the assessment of the tribological behavior of the Al–SiCp composite for high-temperature applications. Moreover, the Al–SiCp composite was fabricated by adapting the liquid metallurgy route with varying weight percentages of SiCp (x = 3, 6, and 9). Density, hardness, and high-temperature wear tests were performed to evaluate the hardness and tribological characteristics and properties of modern-day advanced composites. Moreover, the inclusion of SiCp enhanced the advanced composite materials hardness from 60 HV to 110 HV due to a high degree of refinement of the α-phase. Subsequently, the fabricated samples’ wear behavior was assessed by varying the wear parameter viz. the applied load (20 N and 30 N) and sliding distance (250 m, 500 m, 750 m, and 1000 m) with the constant sliding velocity (0.45 m/s) for various temperatures (40 °C, 150 °C, and 250 °C). Moreover, the results revealed that the enhancement in the reinforcement percentage improves the wear resistance. Consequently, the wear rate decreased at 250 °C, possibly owing to the development of the oxide layers. Therefore, the occurrence of delamination and plastic deformation were evidenced in the wear-out surface, thereby depicting the prevalence of delamination and the abrasive wear-mechanism. View Full-Text
Keywords: aluminum; SiCp; stir casting; high-temperature wear; worn-out surface aluminum; SiCp; stir casting; high-temperature wear; worn-out surface
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MDPI and ACS Style

S, M.; S, S.K.; Narayanan, S.; Srinivasan, K.; Joseph Raj, A.N. Sensor-Assisted Assessment of the Tribological Behavioral Patterns of Al–SiCp Composites under Various Environmental Temperature Conditions. Materials 2019, 12, 4004.

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