Aluminium metal matrix composites literature review

Reactivity of the Matrix and the Reinforcing Material The properties at the interface contribute largely to the overall working and behaviour of the composite.

In another study, NeelimaDevi et al.

Thesis on aluminium metal matrix composites

Bernstein, Proposed failure mechanism in a discontinuously reinforced aluminum alloy, Scr. They concluded that for evaluating temperatures and stresses generated in the cutting tool, numerical methods, such as the finite element method, offer a more promising approach compared to direct measurement techniques. The second method to increase the wettability is to heat treat the reinforcing materials. Desre and J. Fitzer, M. Keidel, S. It can be seen that the wettability of the matrix and the particle plays a major role in determining the properties of the composite material as good wetting results in a stronger bond at the interface [30].

Moshier, J. Ishikawa, J. The main reason for this extensive use is its low weight; density being about one-third of copper or steel alloys [6] and its specific gravity being 2.

research papers on metal matrix composites

In the case of Al-SiC the primary reaction at the interface is [21, 22, 23, 24]: According to Tham et al. This section will briefly discuss this phenomenon in terms of Al-SiC fabrication.

The garnet particles reinforced aluminum composites can be tailored and engineered with specific required properties for specific application requirements, which increases the wear resistance with increase in garnet content. Figure 1.

Aluminium based metal matrix composites pdf

Summarising, literature survey shows that Al base MMCs are of huge need as they are used for various applications as for making different machine components as heavy duty pistons, aircraft generator housings, air cooled cylinder heads, engine crankcases, petrol and oil tanks, oil pans, water cooled cylinder heads, rear axle housings, flywheel housings, automotive transmission cases, oil pans, rear axle housings, brackets, water cooled cylinder blocks, various fittings and pump bodies, air brake castings, gear cases, air cooled cylinder heads, air brake castings, gear cases, air cooled cylinder heads, Internal combustion engine pistons and blocks, cylinder bodies for compressors, pumps and brakes which gets degraded with passage of time due to either wear abrasive, adhesive or corrosion so its becomes very essential to study their wear properties [ 56 ]. Theyconcluded that the tool wear and the surface finish are negatively affected by the particle size. The presence of a BUE increases the actual rake angle of the tool resulting in a lower cutting force. The distribution of the fly ash particles in the matrix phase was investigated using the SEM image. A high feed can reduce the tool-wear ratedue to the improvement in the conduction of heat from the cutting zone to theworkpiece [8]. Joud, P. Fly ash was added to the aluminium alloy and fabricated by stir casting method. The matrix holds reinforcing particles in the proper orientation and position so that they can carry the intended loads and distributes the loads evenly among the reinforcements so in a way matrix allows the strength of the reinforcements to be used to their full potential.

Therefore, it can be seen that this material offers considerable advantages to the aerospace industry especially in applications that require good thermal and tensile properties.

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Effect of Silicon Carbide (SiC) on Stir Cast Aluminium Metal Matrix Hybrid Composites