Abstract:
Improving the performance of Al-Zn-Mg-Cu alloy by deformation heat treatment is one of the research focuse of ultra-high strength Al-Zn-Mg-Cu alloy. In order to obtain high-strength Al-Zn-Mg-Cu alloy, scholars in China and abroad have conducted in-depth research on deformation methods, heat treatment and deformation heat treatment processes, and achieved good scientific research results, which have promoted the development and application of ultra-high strength aluminum alloys. The typical deformation methods, heat treatment processes and deformation heat treatment processes were reviewed, and the influence mechanisms of deformation heat treatment on the microstructure, mechanical properties, corrosion behavior and fracture toughness of ultra-high strength Al-Zn-Mg-Cu alloys were clarified by comparing and analyzing the characteristics of deformation heat treatment, and the research direction and development prospects of deformation heat treatment were prospected, aiming to provide references, for the further improvement of the compositional design, preparation technology and properties of ultra-high strength Al-Zn-Mg-Cu alloys.