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Tensile tests were conducted at temperatures of 298 to 773 K for a nanostructured composite consisting of an ultrafine-grained Al-5083 matrix reinforced with nano-scale SiC particles, which was synthesized with a powder cryomilling and consolidating technique. The nanostructured composite showed enhanced strength. Its ductility increased with increasing temperature to a maximum at 473 K, and then decreased to a minimum at 673 K. A unique work softening phenomenon was observed.
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Tang et al. (2007) studied this question.
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