Open AccessThe Mechanical Properties of Aluminium Metal Matrix Composite (AlMMCs) Reinforced with Ni and SiCp
Author(s) -
Haider T. Naeem
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/987/1/012004
Subject(s) - materials science , sintering , vickers hardness test , scanning electron microscope , metallurgy , powder metallurgy , silicon carbide , composite number , nickel , aluminium , metal matrix composite , magnesium , manganese , composite material , microstructure
This investigation studies the effects of nickel (Ni) particles combined with silicon carbide (SiCp) particles on the microstructural and mechanical properties of aluminium(Al)-magnesium(Mg)-manganese(Mn) matrix alloys under different sintering temperatures. The Al-Mg-Mn-SiC p /Ni p composite samples were produced via the powder metallurgy route. The sintering process was performed on a green compact of Al-Mg-Mn matrix/SiC p / or Ni p composites at 400 °C and 600 °C for 1.5 hours at a constant heating rate of 50 °C/min. The Al-Mg-Mn-SiC p /Ni p samples were evaluated and characterised using a scanning electron microscope and X-ray diffraction. Additionally, the Al-Mg-Mn-SiC p /Ni p samples were measured for Vickers hardness and compressive strength. The outcomes show that Al-Mg-Mn-5%SiC p -6%Ni p gave the highest Vickers hardness. The results showed that the optimal sintering temperature performed on the Al-Mg-Mn-SiC p /Ni p sample was 400 °C compared with 600 °C because the overall dissolution of alloying elements within the Al-matrix led to an enlargement of grains, thus, reducing their mechanical properties.