| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Manufacturing Size Effect on the Microstructural, Static Mechanical, and Fatigue Properties of Additively Manufactured Ti-6Al-4V Microbeams |
| Author(s) |
Kaiyang Yin, Bo Cao, Juraj Todt, Florian Gutmann, Hasan Furkan Tunçay, Georg C. Ganzenmüller, Jozef Keckes, Stefan Hiermaier, Chris Eberl |
| On-Site Speaker (Planned) |
Kaiyang Yin |
| Abstract Scope |
The manufacturing size effect of Ti-6Al-4V submillimeter structures manufactured by selective laser melting to build metallic mechanical metamaterials of unique mechanical properties, for example, negative Poisson's ratio and ultrahigh modulus, which show promise in biomedical, environmental, and energy-related applications, has not been systematically investigated. Presented are the quantification of the porosities by X-ray microtomography scans, texture analysis, and mechanical characterization of the additively manufactured Ti-6Al-4V microbeams. We found linearly decreasing porosities, increasing static mechanical properties, pronounced differences in low cycle fatigue, and increasing texture in the microbeam with increasing diameter from 250 to 500µm. The variation of their microstructures, resulting from the printing parameters and the thermal conditions, leads to the discrepancy between the behavior observed in experiments and finite element simulation. Our results provide the structure-property-processing correlation to improve the manufacturing and prediction of the mechanical behavior of metallic mechanical metamaterials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Mechanical Properties |