![]() ![]() Decrease in the number of chip curls is in direct proportion with the decrease in the strain at failure during tension testing, refer Table 2. This trend can be explained from the mechanical properties of these materials-by observing the variation in the strain at failure during tension testing. While the number of chip circles decreases to 1 to 1 -1/2 in case of Al/SiC/10p composites, chips of Al/SiC/20p and 30p composites show similarity by curling through about 3/4th of a circle. Chips of unreinforced alloy break after curling through 2 to 3 circles. Table 2 gives approximate number of circles through which a chip curls before breaking. These figures show that the number of circles through which chips curl before breaking decreases as the volume of reinforcement increases. In these figures, the chips are arranged from top to bottom with increasing volume of reinforcement in com- posites. ![]() produced as per above mentioned experimen- tal conditions are depicted in Fig.
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