Open AccessExperimental investigations on Mechanical and Tribological behaviour of A356 with x wt% Boron Carbide and Fly Ash Hybrid Composites
Author(s) -
A. Sathishkumar,
R. Soundararajan,
A. Ramesh,
T.J. Muthu Vel,
A Richie Ronaldo,
J Sai Deepesh
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/988/1/012023
Subject(s) - tribometer , materials science , boron carbide , tribology , alloy , composite material , boron , metallurgy , casting , composite number , friction coefficient , coefficient of friction , chemistry , organic chemistry
The current research work aims to analyse the behaviour of mechanical and tribological characteristics of stir cum squeeze cast A356 with Boron Carbide(B 4 C) and Fly ash (FA) Metal Matrix Hybrid Composites (MMHC’s) on hardness, wear rate and friction coefficient. Experiments were carried out through stir cum squeeze casting method by keeping the influenced process parameters constant and varying three different equal weight percentage (2.5, 5, 7.5wt%) of B 4 C and FA with A356 alloy. Each prepared composite samples were tested for hardness and also, wear and friction characteristics were accomplished in a pin on disc tribometer apparatus. The wear and friction characteristics were obtained by varying the load of 10,20,30,40N with a constant sliding distance of 2500m respectively on the tribometer. Experimental investigation results uncovered that the hardness of A356 with 7.5wt% B 4 C and 7.5wt% FA MMHC’s was increased with an increment in the weight percentage of B 4 C and FA. Also, there is an increase in the wear rate and a decrease in friction coefficient with a rise in the load from 10N to 40N. Overall, the wear rate of the MMHC sample was reduced with a higher wt% of B 4 C and FA. The study reveals that the prepared MMHC’s via stir cum squeeze casting was a suitable component for automobiles.