The influence of microstructure on mechanical properties of SLM 3D printed Ti- 6Al-4V

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    Abstract

    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.
    Original languageEnglish
    Article number03005
    JournalMATEC Web of Conferences
    Volume321
    Number of pages6
    ISSN2261-236X
    DOIs
    Publication statusPublished - 2020
    EventThe 14th World Conference on Titanium (Ti 2019) - La Cité Nantes Events Center, Nantes, France
    Duration: 10 Jun 201914 Jun 2019

    Conference

    ConferenceThe 14th World Conference on Titanium (Ti 2019)
    LocationLa Cité Nantes Events Center
    Country/TerritoryFrance
    CityNantes
    Period10/06/201914/06/2019

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