Investigating the Mechanical Properties of Hot-Rolled Aluminum Alloy 7xxx series: Insights for Aerospace Applications

Aluminum alloy 7xxx series stands as a cornerstone material in aerospace engineering due to its exceptional strength-to-weight ratio and corrosion resistance. This study delves into the mechanical properties of hot-rolled aluminum alloy plate 7xxx series, with a specific focus on understanding variations in tensile strength across different thicknesses. Through a combination of experimental investigations and ANSYS 2019 simulations, the study unveils the intricate interplay of factors influencing the material's behavior during the hot rolling process. Our analysis reveals the dependence of mechanical properties on rolling direction, where a nuanced non-uniform distribution of mechanical properties normal to the rolling direction, shaped by dynamic impact forces and temperature gradients, is found Remarkably, destructive tensile testing showcases a non-linear relationship between tensile strength and thickness, delineated by a distinctive W-shaped curve. These empirical findings furnish actionable insights for industrial applications, highlighting the selection of workpiece sizes with specific product requirements and material specifications, taking the directional inhomogeneity into account. Ultimately, our research enhances the collective understanding of the mechanical behavior of hot-rolled aluminum alloy plate 7xxx series, thereby contributing to advancements in aerospace and allied industries.