Effect of Increase in Heterogeneous Nucleation Sites on the Aging Behavior of 6061/SiC Metal Matrix Composites

Gupta, M and Surappa, MK (1995) Effect of Increase in Heterogeneous Nucleation Sites on the Aging Behavior of 6061/SiC Metal Matrix Composites. In: Materials Research Bulletin, 30 (8). pp. 1023-1030.

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Abstract

In this study, aging characteristics of an aluminum based metallic matrix reinforced with various volume fraction of silicon carbide was investigated. The results showed an increase in aging kinetics with an increase in volume fraction of SiC particulates. Results of microstructural characterization studies exhibited the presence of solute rich zone in the near vicinity of SiC particulates and the nucleation of secondary phases both at and in near vicinity of SiC particulates. The results of accelerated aging kinetics thus observed were rationalized in terms of an increase in the heterogeneous nucleation volume in the metallic matrix and the constitutional characteristics of the Al/SiC interfacial region.

Item Type:	Journal Article
Publication:	Materials Research Bulletin
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Keywords:	Metal matrix composites;Aging;Heterogeneous nucleation
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	03 Jul 2008
Last Modified:	19 Sep 2010 04:46
URI:	http://eprints.iisc.ac.in/id/eprint/14593

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