Mechanical Property Enhancement for Al Based Metal Matrix Composites
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.
A. Saimoto and M.H. Aliabadi
S. R. Humphries et al., "Mechanical Property Enhancement for Al Based Metal Matrix Composites", Key Engineering Materials, Vols. 452-453, pp. 829-832, 2011