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Mechanical and tribological properties of LM13/TiO2/MoS2 hybrid metal matrix composite synthesized by stir casting

Publication Type : Journal Article

Publisher : Particulate Science and Technology, Taylor and Francis Inc

Source : Particulate Science and Technology, Taylor and Francis Inc., Volume 37, Issue 5, p.566-578 (2019)

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Keywords : Adhesive wears, Aluminium metal matrix composites, Automotive applications, Homogeneous distribution, Hybrid metal matrix composites, Mechanical and tribological properties, Mechanical properties, Metallic matrix composites, Metals, Microstructural investigation, Response surface methodology, Surface analysis, Surface properties, Tribology, Wear resistance

Campus : Coimbatore

School : School of Engineering

Department : Mechanical Engineering

Year : 2019

Abstract : This paper involves the fabrication of LM13/TiO2 (12 wt%)/MoS2 (3 wt%) hybrid metal matrix composite and unreinforced alloy using liquid metallurgy route and evaluation of mechanical properties and adhesive wear characteristics. Microstructural investigation revealed homogeneous distribution of reinforcements in matrix. Hardness and tensile properties revealed that the composite had attained an improvement of 16.5 and 35%, respectively, over alloy. Wear characteristics were analyzed using pin-on-disk tribometer by varying load (10–40 N), sliding velocity (1–4 m/s), and sliding distance (500–2000 m). Statistical analysis was performed using response surface methodology to obtain the optimum wear process parameters for achieving maximum wear resistance. Results revealed that, with increasing load and sliding velocity, an increment in wear rate was observed for both alloy and composite, while a decline was observed with increasing sliding distance for composite and vice versa for alloy. Worn surface analysis revealed that load plays a prominent role in deciding wear rate, followed by sliding velocity. Sliding distance had less effect on wear rate of composite while it had significance on alloy. This hybrid composite can replace the conventional material used in automotive applications involving tribological importance. © 2018 Taylor amp; Francis

Cite this Research Publication : R. Jojith and Dr. Radhika N, “Mechanical and tribological properties of LM13/TiO2/MoS2 hybrid metal matrix composite synthesized by stir casting”, Particulate Science and Technology, vol. 37, no. 5, pp. 566-578, 2019.

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