Research status and development trend of mechanical properties of 7 series ultra-high strength aluminum alloy

Aluminum alloy material has the characteristics of good durability, corrosion resistance, light weight, easy processing, maintenance-free, recyclable, etc. It has a wide range of application prospects in the field of civil engineering, but with the increase of structural load complexity, the strength of aluminum alloy material has been put forward new requirements. In this paper, the engineering application of 7 series ultra-high strength aluminum alloy materials is introduced, and the mechanical properties of several commonly used 7 series ultra-high strength aluminum alloy materials are compared. Based on the shortcomings of the existing research, the development direction of the research on the properties of 7 series ultra-high strength aluminum alloy materials and components is prospected, in order to promote the engineering application of high-strength aluminum alloy materials, and provide reference for the formulation of related standards for alumi-num alloys.