Strength-improved Al65Cu16.5Ti18.5 amorphous/crystalline alloy synthesized by spark plasma sintering

The Al65Cu16.5Ti18.5 alloy containing AlCu micron grains and amorphous/nanocrystalline region was synthesized by spark plasma sintering. The micron grains formed from the localized melting of the contacted region of powders, the crystallization of the amorphous phase induced the formation of amorphous/nanocrystalline region. The sintered alloy exhibited high strength (1920 MPa).