Abstract
The effect of the heat treatment on microstructure and mechanical properties of an Al‐Zn‐Mg‐Cu alloy reinforced with Ni‐based metallic glass powder fabricated by powder metallurgy is investigated. Good bonding between the glassy reinforcement and the Al‐based matrix is achieved through the formation of a hybrid inter diffusion layer consisting of complex phases. The composite with 20 vol% reinforcement shows an excellent combination of ultimate strength of 890 ± 6 MPa and fracture strain of about 17% after T6 heat treatment. The strengthening mechanism can be ascribed to the combined effect of the dispersed nano‐size precipitates throughout the matrix and load bearing of the high‐strength glassy particles. The results of the current study show the high potential of Al‐based metal composites in achieving high strength and good plasticity.
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