Journal Article

PUBDB-2018-03155

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Peritectic titanium alloys for 3D printing

Barriobero-Vila, P. (Corresponding author) ; Gussone, J.Extern* ; Stark, A.Extern* ; Schell, N.HZG* ; Haubrich, J.Extern* ; Requena, G.Extern*

2018
Nature Publishing Group London

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Please use a persistent id in citations: doi:10.1038/s41467-018-05819-9  doi:10.3204/PUBDB-2018-03155

Abstract: Metal-based additive manufacturing (AM) permits layer-by-layer fabrication of near netshapedmetallic components with complex geometries not achievable using the designconstraints of traditional manufacturing. Production savings of titanium-based componentsby AM are estimated up to 50% owing to the current exorbitant loss of material duringmachining. Nowadays, most of the titanium alloys for AM are based on conventional compositionsstill tailored to conventional manufacturing not considering the directional thermalgradient that provokes epitaxial growth during AM. This results in severely textured microstructuresassociated with anisotropic structural properties usually remaining upon post-AMprocessing. The present investigations reveal a promising solidification and cooling path for αformation not yet exploited, in which α does not inherit the usual crystallographic orientationrelationship with the parent β phase. The associated decrease in anisotropy, accompanied bythe formation of equiaxed microstructures represents a step forward toward a next generationof titanium alloys for AM.

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Contributing Institute(s):

1. DOOR-User (DOOR)
2. Zentrum für Material- und Küstenforschung (HZG)

Research Program(s):

1. 6G3 - PETRA III (POF3-622) (POF3-622)
2. FS-Proposal: I-20170438 (I-20170438) (I-20170438)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2018

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