Journal article · Conference paper
The influence of microstructure on mechanical properties of SLM 3D printed Ti- 6Al-4V
Materials and Surface Engineering, Department of Mechanical Engineering, Technical University of Denmark1
Department of Mechanical Engineering, Technical University of Denmark2
Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark3
Manufacturing Engineering, Department of Mechanical Engineering, Technical University of Denmark4
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.
Language: | English |
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Publisher: | EDP Sciences |
Year: | 2020 |
Pages: | 03005 |
Proceedings: | The 14th World Conference on Titanium (Ti 2019) |
ISSN: | 2261236x and 22747214 |
Types: | Journal article and Conference paper |
DOI: | 10.1051/matecconf/202032103005 |
ORCIDs: | Poulios, Konstantinos , Mohanty, Sankhya , Somers, Marcel A. J. and Christiansen, Thomas L. |