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

Cecilie V. Funch; Kinga Somlo; Konstantinos Poulios; Sankhya Mohanty; Marcel A. J. Somers; Thomas L. Christiansen

doi:10.1051/matecconf/202032103005

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

Cecilie V. Funch^*
, Kinga Somlo
, Konstantinos Poulios
, Sankhya Mohanty
, Marcel A. J. Somers
, Thomas L. Christiansen

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › Research › peer-review

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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 language	English
Article number	03005
Journal	MATEC Web of Conferences
Volume	321
Number of pages	6
ISSN	2261-236X
DOIs	https://doi.org/10.1051/matecconf/202032103005
Publication status	Published - 2020
Event	The 14th World Conference on Titanium (Ti 2019) - La Cité Nantes Events Center, Nantes, France Duration: 10 Jun 2019 → 14 Jun 2019

Conference

Conference	The 14th World Conference on Titanium (Ti 2019)
Location	La Cité Nantes Events Center
Country/Territory	France
City	Nantes
Period	10/06/2019 → 14/06/2019

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@inproceedings{1fa69a63b6ef42288e131029ef35d747,

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

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.",

author = "Funch, \{Cecilie V.\} and Kinga Somlo and Konstantinos Poulios and Sankhya Mohanty and Somers, \{Marcel A. J.\} and Christiansen, \{Thomas L.\}",

year = "2020",

doi = "10.1051/matecconf/202032103005",

language = "English",

volume = "321",

journal = "MATEC Web of Conferences",

issn = "2261-236X",

publisher = "E D P Sciences",

note = "The 14th World Conference on Titanium (Ti 2019) ; Conference date: 10-06-2019 Through 14-06-2019",

}

TY - GEN

T1 - The influence of microstructure on mechanical properties of SLM 3D printed Ti- 6Al-4V

AU - Funch, Cecilie V.

AU - Somlo, Kinga

AU - Poulios, Konstantinos

AU - Mohanty, Sankhya

AU - Somers, Marcel A. J.

AU - Christiansen, Thomas L.

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

U2 - 10.1051/matecconf/202032103005

DO - 10.1051/matecconf/202032103005

M3 - Conference article

SN - 2261-236X

VL - 321

JO - MATEC Web of Conferences

JF - MATEC Web of Conferences

M1 - 03005

T2 - The 14th World Conference on Titanium (Ti 2019)

Y2 - 10 June 2019 through 14 June 2019

ER -

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

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Conference

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