Mechanical Property Enhancement for Al Based Metal Matrix Composites

Abstract:

An enhanced nucleation heat treatment process was employed to refine the grain structure of 7075Al/ 7wt.% SiCp metal matrix composite material. The grain structure of the metal matrix composite was investigated. The resulting microstructures were compared. It was found that a fine grained microstructure developed after the rapid heat treatment process. An increase in hardness was achieved, with hardness increasing from 129 HV in the cold extruded state to 137 – 153 HV after the heat treatment process.

• Periodical: Key Engineering Materials (Volumes 452-453)
• Pages: 829-832
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.452-453.829
• Online since: November 2010
• Authors: Sam R. Humphries, Richard Wuhrer, N.G. Booth, Wing Yiu Yeung, Qiu Bao Ouyang, J. Qin, D. Zhang

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