The relative difference between the average dislocation densities of 6061Al-15vol%SiC composites was investigated by using 2 independent methods (hardness, differential scanning calorimetry). The results were interpreted in terms of the so-called actual temperature at which the measurements were made using each technique. The present analysis accounted for the high microstructural stability of such composites at high temperatures.

On the Stability with Temperature of the Dislocation Structure in 6061Al-15vol%SiC Composites as Studied by Hardness and Differential Scanning Calorimetry. A.Borrego, G.González-Doncel: Journal of Materials Science, 2003, 38[12], 2761-5