About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Feedstock Processing for Multifunctional Materials
|
| Presentation Title |
Radial Bi-Metallic Materials to Overcome Strength-Ductility Trade-Off Under High-Speed Impact |
| Author(s) |
Xiao Shang, Lulu Guo, Joseph Agyapong, Solomon Boakye-Yiadom, Yu Zou |
| On-Site Speaker (Planned) |
Xiao Shang |
| Abstract Scope |
Bi-metallic materials have drawn significant attention due to their potentials to show superior properties that are unattainable by their monolithic counterparts. Recent developments in directed energy deposition (DED) have facilitated the fabrication of such materials by programming material compositions and microstructure locally. In this work, we fabricate radially arranged bi-metallic materials with various configurations. The radial bi-metallic materials are subjected to compression tests under quasi-static, intermediate strain rate, and high strain rate conditions, and compared with their monolithic counterparts. It has been discovered that the radial bi-metallic materials demonstrate synergistic improvements in their flow stress and ductility under high strain rate impact. The underlying mechanisms of such improvements are investigated and explained in this work, from both the material mixing and the structural confining points of view. The proposed radial bi-metallic materials offer promising potential for applications requiring enhanced energy absorbability and excellent dynamic mechanical performance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Other |