About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Hollow-strut Titanium Lattice Materials: A Viable Option for Lightweight Engineering |
| Author(s) |
Ma Qian, Jordan Noronha, Haozhang Zhong, Martin Leary , Milan Brandt |
| On-Site Speaker (Planned) |
Ma Qian |
| Abstract Scope |
Inspired by the cross-sectional optimization of civil engineering, hollow-strut metal lattices are an emerging new class of cellular materials that can be used for a variety of applications. The recent introduction of laser powder bed fusion (LPBF) processes to the hollow-strut metal lattice space has facilitated their fabrication with sub-millimetre wall thicknesses. As a result, their relative density can be controlled over a wide range and is directly comparable to solid-strut lattices. Experimental studies have shown that these hollow-strut titanium lattices can exceed the empirical upper limits of both the strength and stiffness of solid-strut titanium lattices of comparable density and exhibit unique failure modes. This article discusses the manufacturability, limitations, mechanical properties, and deformation behaviours by concurrent stretching, bending and shear of LPBF-printed Ti-6Al-4V hollow-strut lattices, compared to solid-strut Ti-6Al-4V lattices of equivalent density. It is concluded that hollow-strut titanium lattice materials are a viable option for lightweight engineering. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Additive Manufacturing, Mechanical Properties |