| Issue |
MATEC Web Conf.
Volume 321, 2020
The 14th World Conference on Titanium (Ti 2019)
|
|
|---|---|---|
| Article Number | 03005 | |
| Number of page(s) | 6 | |
| Section | Additive and Near Net Shape Manufacturing | |
| DOI | https://doi.org/10.1051/matecconf/202032103005 | |
| Published online | 12 October 2020 | |
The influence of microstructure on mechanical properties of SLM 3D printed Ti-6Al-4V
Technical University of Denmark, Department of Mechanical Engineering
2 Corresponding author: cevfu@mek.dtu.dk
This research focuses on establishing the relationship between the SLM process parameters, microstructure and mechanical properties in 3D printed ti-6Al-4V. To this end modelling of the thermal history, reflecting the applied process parameters, is linked to the as-printed microstructure, which, in turn, is linked to experimentally determined mechanical properties. The very high cooling rates in the centre of the specimen, as predicted by modelling, lead to a fine, martensitic microstructure, while the slower cooling rates close to the support structure lead to a fine lamellar α+β microstructure. The tensile properties, in particular the ductility, were found to depend on the printing orientation and surface finish.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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