An Analysis of Tensile and Compressive Properties of Carbon Fiber High-Entropy Alloy Composite Laminates

Tensile tests were carried out on carbon fiber high-entropy alloy, carbon fiber aluminum alloy, carbon fiber titanium alloy, and carbon fiber-reinforced composite laminates. Their mechanical properties were investigated at the tensile strain rates of 3·10^–3, 1·10^–3, and 1·10^–4 s^–1. Compression tests on carbon fiber high entropy alloy (HEA) and carbon fiber-reinforced composite laminates were carried out at the strain rates of 3·10^–3 and 1·10^–3 s^–1, respectively. Results showed that the carbon fiber high-entropy alloy composite laminate was more elastic than the carbon fiber-reinforced composite laminate at the strain rates of 3·10^–3, 1·10^–1, and 1·10^–4 s^–1. Their strength increased by 27, 16, and 10%, and the breaking strength by 18, 12, and 14%, respectively. Compared with the carbon fiber-reinforced composite laminate, the compressive strength of the carbon fiber HEA composite laminate increased by 44 and 29% at the compressive strain rates of 3·10^–3 and 1·10^–3s^–1, respectively.