Solidification behavior of stir-cast Al alloy metal matrix composites

In recent times, aluminum and its alloy based cast metal matrix composites have gained lot of popularity in all the emerging fields of engineering and technology owing to their superior mechanical properties compared to monolithic materials. The desired properties of the cast metal matrix composites have influenced by the solidification behavior of the cast metal matrix composites, which imposed to study the solidification behavior of the cast metal matrix at different weight fraction of reinforcement particles. The present paper aims to investigate the solidification behavior of Aluminum alloy (LM6)SiCp composites at different section of fivestepped component (composite castings) which has produced by using stir cast technique. The temperature of the cast composites during solidification has measured by putting Ktype thermocouples at the centre of the each step/section, from which the solidification curves have obtained (constructed.) Experiments were carried out over range of particle weight percentage of 2.5 to 15 wt% in steps of 2.5 wt%. The solidification curves of Aluminum alloy (LM6)SiCp composites reveal that significant increase in solidification time with the addition of SiC particles. The curves also show that the rate of cooling and the solidification time are different at different section of the castings.