The effect of rolling direction and strain rates on the tensile properties of AA2024-T3 aluminum alloy

Abstract

The AA2024-T3 alloy is a lightweight and durable material commonly used in the aerospace industry. This study investigates the impact of the rolling direction (RD) and strain rates on the alloy’s tensile properties. Tensile tests have been performed on samples oriented parallel and transverse to the rolling direction at varying strain rates (5, 25, and 125 mm/min). Samples parallel to the rolling direction have exhibited higher strength compared to those in the transverse direction (TD). At a strain rate of 5 mm/min, the maximum tensile strength in RD samples has been 530.72 MPa, while in TD samples, it has been 505.76 MPa. At 25 mm/min, the tensile strength has been 498.31 MPa in RD and 482.91 MPa in TD. At 125 mm/min, the tensile strength has been 508.52 MPa in RD and 480.36 MPa in TD. The increase in strain rate has had a complex effect on the mechanical properties. The total elongation values have also varied with strain rate, with the highest total elongation observed at 5 mm/min (0.168) in both RD and TD directions. These findings have highlighted the significant impact of the rolling direction and strain rate on the mechanical properties of the AA2024-T3 alloy, which should be considered in design and manufacturing processes.