Open AccessProcessing and wear properties of aluminium surface composites using friction stir processing
Author(s) -
A. Thangarasu,
N. Murugan
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/764/1/012023
Subject(s) - friction stir processing , materials science , microstructure , indentation hardness , aluminium , composite material , scanning electron microscope , composite number , aluminium alloy , alloy , volume fraction , metallurgy , boron carbide , optical microscope
Friction stir processing (FSP) was employed to fabricate Aluminium Surface Composites (SC) by reinforcing boron carbide (B 4 C) particles with AA6082 aluminium matrix alloy. The role of reinforced particles on the microstructure and mechanical behaviour of the prepared surface composites was studied. The microstructure of the produced composite was examined utilising optical microscopy, scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD). The micrographs of the processed zone revealed fine grains and uniform dissemination of B 4 C particles with good interfacial bonding. Microhardness and wear resistance tests were conducted on the matrix alloy, FSPed matrix and produced surfaced composites with the different volume fraction of B 4 C particles. The microhardness and wear resistance showed the higher values compared to aluminium matrix and friction stir processed aluminium without B 4 C particulates. It was seen that the wear resistance of the FSPed surface composite was improved significantly as compared to that of the AA6082 matrix alloy.