Due to their versatile mechanical qualities, metal matrix composites (MMCs) are
explored for usage in a wide variety of structural applications, including those in the
aerospace/aviation, transportation, defense, and sports sectors. Al6092/SiC 17.5% by
volume particle composites are investigated to determine the effect of Al matrix
anisotropy on their mechanical properties under a range of loading, strain rates, and
heat treatments with the goal of improving metal matrix composite performance and
design. This work examines the effects of anisotropy and loading conditions at a
strain rate on
the deformation and damage behavior of composites made of Al6092 and SiC particles in three
orientations (,
, and
). To
gain a fundamental understanding of the heat treatment effect on the fracture
mechanism, the microstructural changes, and the interface between the Al-matrix
and SiC particles, as well as to establish a correlation between strain rate and heat
treatment and anisotropy effect, it is necessary to examine the influence of
heat treatment (T6 and O-condition) on the microstructure, deformation,
and damage behavior of metal matrix composites under various loading
conditions. The mechanical properties were evaluated by tensile stress, and shear
stress. In order to characterize the precipitate and intermetallic compounds
generated at the Al/SiC interface, changes in the microstructure of the Al/SiCp
and the topography of the fracture are examined using scanning electron
microscopy (SEM) and X-ray diffraction (XRD). The results showed in parallel
to the rolling
axis was observed to be the preferred orientation of the Al matrix over the perpendicular
and
orientations. In the longitudinal direction (parallel to the rolling axis), Young’s
modulus and tensile strength of the Al (6092) alloy were greater than in the
and
transverse directions. In T6 thermal treatment, the formation of extremely small,
uniformly disseminated second-phase particles within the matrix of the original phase
increases the hardness and strength of the Al/SiC composite.
