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Fabrication and mechanical properties of high-performance aluminum alloy

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Abstract

High-performance Al–Cu–Mg alloy was fabricated 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 promotes the densification of the aluminum powders. A 97.1 % theoretical density is achieved in this alloy after sintering. The material shows excellent mechanical properties 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.

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Acknowledgments

This work was financially supported by the National High Technology Research and Development Program (No. 2013AA031104).

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Correspondence to Zhi-Meng Guo.

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Yang, WW., Guo, ZM., Cao, HQ. et al. Fabrication and mechanical properties of high-performance aluminum alloy. Rare Met. 33, 400–403 (2014). https://doi.org/10.1007/s12598-014-0262-y

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  • DOI: https://doi.org/10.1007/s12598-014-0262-y

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