Study on Tribological Behaviour of Al/SiC/MoS
Hybrid Metal Matrix
Composites in High Temperature Environmental Condition
S. Ajith Arul Daniel
· Sakthivel M.
· Gopal P. M.
· Sudhagar S.
Received: 1 August 2016 / Accepted: 20 December 2017
© Springer Science+Business Media B.V., part of Springer Nature 2018
The current study investigates the tribological behaviour of aluminium hybrid composite reinforced with SiC and MoS
various temperature environments. The hybrid metal matrix composites have been fabricated through compo casting method
by reinforcing different sizes of SiC (10, 20, 40 μm) at various weight fractions (5%, 10% & 15%) with 5059 aluminium
alloy, meanwhile the addition of Molybdenum disulphide (MoS
) is fixed at 2%. Tribological behaviour of composites was
evaluated based on wear loss and friction coefficient by using pin on disc apparatus. Along with particle size and weight
percentage of SiC, load, sliding velocity, sliding distance and temperature were considered as process parameters and L
orthogonal array was selected to perform the experiments. Through Taguchi and Analysis of Variance (ANOVA) method
optimum sliding condition for reduced wear loss and the significance of each parameter on wear behaviour of the composite
were identified. Temperature and load predominantly affects the tribological behaviour of aluminium hybrid composite. It
was found that the wear resistance is high when smaller particles were reinforced at maximum percentage (15%) and the
results were supported with worn surface SEM images.
Keywords High temperature · Wear rate · Friction coefficient · Silicon carbide · Molybdenum disulphide
A new class of emerging materials called metal matrix
composites replaces conventional materials in many appli-
cations such as bearings, cylinder liners and pistons etc.
owing to their unique high strength to weight ratio and
wear resistant properties. Over the last two decades Metal
Matrix Composites (MMCs) are an attractive and dynamic
area for scientific analysis and research, primarily in recent
times MMCs have become practical engineering materials
S. Ajith Arul Daniel
Gopal P. M.
Department of Mechanical Engineering, Anna University
Regional Campus Coimbatore, Coimbatore, 641046, India
Department of Mechanical Engineering, Karpagam Academy
of Higher Education, Coimbatore, 641021, India
. Aluminium based composites contribute principle share
amongst total volume of MMCs produced for commercial
applications . Aluminium is the lightest metal used in
industrial applications with the density of around 2.7g/cc
next to magnesium. These metals were widely used as base
material in composite fabrication for the reasons of high
strength to weight ratio and easy to process. Aluminium
based materials are usually incorporated with a hard ceramic
particles to produce composites which increases the apt-
ness of these lightweight materials for to be used in several
applications where wear is the predominant factor .
Aluminium is reinforced with different types of hard
ceramic materials such as SiC [4–8], B
C[9, 10], Al
[11–13]andTiC to fabricate composite materials
for different applications. Apart from these usual ceramic
particles, some researchers have tried few other materials
like fly ash, bagasse ash, marble dust and rock dust .
Mostly all researches are focussing on improving the wear
resistance of the aluminium alloy and amongst the various
ceramic particles SiC is used with many materials and
resulted in enhanced wear resistance.
SiC particulates reinforced AMCs are well-known for
high strength and wear resistance compared to traditional