Microstructure and mechanical properties of Al/Cu-SS hybrid composite via ball milling and friction stir processing

作者：Zikun Wang, Xianyong Zhu, Chen Wang, Xiong Xiao, Ke Zhang, Cheng Jiang, Jiaan Liu · 发表于：iScience · 年份：2025 · DOI：10.1016/j.isci.2025.114008 · 被引用次数：3 · 研究领域：Aluminum Alloys Composites Properties、Advanced Welding Techniques Analysis、Aluminum Alloy Microstructure Properties

Cu further strengthens fine grain strengthening, dispersion strengthening, and load transfer efficiency. Al-5Cu AMCs showed 185.2 MPa ultimate tensile strength (UTS, +104.4% vs. matrix) but 13.8% elongation (-9.2%). Al-10SS AMCs had milder UTS (143.3 MPa, +58.2%) but better ductility (19.3%, +27.0%). The optimal Al-5Cu-10SS AMCs exhibited 183.6 MPa UTS (+102.6%), 58.96 vickers hardness (HV, +96.5%), and 20.3% elongation (+33.6%), with fracture dimples correlating to its performance. This hybrid reinforcement synergizes particle mechanisms, offering an effective route for high-performance AMCs.