High ductility of Be–Al alloy fabricated by investment casting

• DOI: 10.1016/j.jmrt.2024.01.099
• Publication Date: 2024-01-14T13:00:34Z
• Authors: Yao Xie; Yajun Yin; Dongxin Wang; Junyi Li; Xiaoyuan Ji; Wen Li; Xu Shen; Wei Fu; Jianxin Zhou
• Keywords: Ductility (Earth science)

Here, we present a high ductility of the Be–Al alloy manufactured by investment casting. It was superior to most based alloys reported so far, exhibiting yield strength 53∼58 MPa, ultimate tensile 111∼117 and strain 14.1–18.8 %. The many < c + a> dislocations in Be phase were primarily responsible for exceptionally mechanical characteristics. A Schmid factor pyramidal slip led transfer between grains Al grains, which may contribute relieving stress concentration delaying early fracture. profuse activated could render unusual strain. attributed both good interfacial constraint hard phase, makes soft strong like phase. demonstrates texture microstructure design had synergistic improvement strength-ductility balance, suggesting that this be useful tactic enhancing characteristics alloys.