Inducing Stable α + β Microstructures during Selective Laser Melting of Ti-6Al-4V Using Intensified Intrinsic Heat Treatments

Pere Barriobero-Vila; Joachim Gussone; Jan Haubrich; Stefanie Sandlöbes; Julio Cesar Da Silva; Peter Cloetens; Norbert Schell; Guillermo Requena

doi:10.3390/ma10030268

Inducing Stable α + β Microstructures during Selective Laser Melting of Ti-6Al-4V Using Intensified Intrinsic Heat Treatments

Materials (Basel). 2017 Mar 7;10(3):268. doi: 10.3390/ma10030268.

Authors

Pere Barriobero-Vila^{1

2}, Joachim Gussone³, Jan Haubrich⁴, Stefanie Sandlöbes⁵, Julio Cesar Da Silva⁶, Peter Cloetens⁷, Norbert Schell⁸, Guillermo Requena^{9

10}

Affiliations

¹ Institute of Materials Research, German Aerospace Center (DLR), Linder Höhe, Cologne 51147, Germany. pere.barrioberovila@dlr.de.
² Institute of Materials Science and Technology, Vienna University of Technology, Karlsplatz 13/308, Vienna 1040, Austria. pere.barrioberovila@dlr.de.
³ Institute of Materials Research, German Aerospace Center (DLR), Linder Höhe, Cologne 51147, Germany. joachim.gussone@dlr.de.
⁴ Institute of Materials Research, German Aerospace Center (DLR), Linder Höhe, Cologne 51147, Germany. jan.haubrich@dlr.de.
⁵ Department and Chair of Physical Metallurgy and Metal Physics, RWTH Aachen University, Kopernikusstr.14, Aachen 52074, Germany. sandloebes@imm.rwth-aachen.de.
⁶ European Synchrotron Radiation Facility (ESRF), Avenue des Martyrs 71, Grenoble 38000, France.
⁷ European Synchrotron Radiation Facility (ESRF), Avenue des Martyrs 71, Grenoble 38000, France. cloetens@esrf.fr.
⁸ Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, Geesthacht 21502, Germany. norbert.schell@hzg.de.
⁹ Institute of Materials Research, German Aerospace Center (DLR), Linder Höhe, Cologne 51147, Germany. guillermo.requena@dlr.de.
¹⁰ Metallic Structures and Materials Systems for Aerospace Engineering, RWTH Aachen University, Aachen 52062, Germany. guillermo.requena@dlr.de.

Abstract

Selective laser melting is a promising powder-bed-based additive manufacturing technique for titanium alloys: near net-shaped metallic components can be produced with high resource-efficiency and cost savings [...].

Keywords: additive manufacturing; element partitioning; high energy synchrotron X-ray diffraction; intrinsic heat treatment; martensite decomposition; metastable phases; phase transformations; selective laser melting; synchrotron holographic X-ray computed tomography; titanium alloys.