Open AccessMicrostructure and mechanical properties of magnesium Si3N4 reinforced composite fabricated by stir casting method
Author(s) -
A. A.D. Manggabarani,
Anne Zulfia Syahrial
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/902/1/012032
Subject(s) - materials science , microstructure , volume fraction , ultimate tensile strength , composite number , casting , magnesium , porosity , composite material , metallurgy
Currently, the development of materials to improve the efficiency of fuel usage is increasingly carried out, one of which is a matrix composite. The stages of making composites in this study started from the preparation of magnesium matrix and Si 3 N 4 reinforcement to casting with a stirring casting method. The addition of Si 3 N 4 reinforce was carried out by varying the volume fraction by 2 vf-%, 4 vf-%, 6 vf-%, and 8 vf-% which was then characterized by metallographic testing, SEM-EDS, tensile testing, hardness, impact, wear, density and porosity, and XRD. The results of this study showed an increase in mechanical properties by adding Si 3 N 4 as reinforcing particles. The magnesium composite produced different mechanical properties in each variation of the addition of the reinforce. The best mechanical properties resulted from the addition of a reinforce is with a volume fraction of 8 vf-% which produced a hardness value of 94 HRH and a wear rate of 0.0045 mm 3 /m.