摘要
High-performance Al-Cu-Mg alloy was fabri- cated by high-energy ball milling, sintering, and hot extrusion. The microstructure and mechanical properties of the material were preliminarily investigated. Results show that the formation of liquid phase during sintering pro- motes the densification of the aluminum powders. A 97.1% theoretical density is achieved in this alloy after sintering. The material shows excellent mechanical prop- erties after extrusion and heat treatment. The ultimate tensile strength and yield strength of the extruded samples with heat treatment are 613 and 465 MPa, respectively.
High-performance Al-Cu-Mg alloy was fabri- cated by high-energy ball milling, sintering, and hot extrusion. The microstructure and mechanical properties of the material were preliminarily investigated. Results show that the formation of liquid phase during sintering pro- motes the densification of the aluminum powders. A 97.1% theoretical density is achieved in this alloy after sintering. The material shows excellent mechanical prop- erties after extrusion and heat treatment. The ultimate tensile strength and yield strength of the extruded samples with heat treatment are 613 and 465 MPa, respectively.
基金
financially supported by the National High Technology Research and Development Program(No.2013AA031104)
