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Title: Microstructure and mechanical properties of a novel β titanium metallic composite by selective laser melting
Authors: Vrancken, Bey ×
Thijs, Lore
Kruth, Jean-Pierre
Van Humbeeck, Jan #
Issue Date: 15-Apr-2014
Publisher: Elsevier Science
Series Title: Acta Materialia vol:68 pages:150-158
Abstract: Selective Laser Melting is an Additive Manufacturing process in which functional, complex parts are produced by selectively melting consecutive layers of powder with a laser beam. This flexibility enables the exploration of a wide spectrum of possibilities in creating novel alloys or even metal-metal composites with unique microstructures. In this research, Ti6Al4V-ELI powder was mixed with 10 wt% Mo powder. In contrast to the fully α’ microstructure of Ti6Al4V after SLM, the novel microstructure consists of a β titanium matrix with randomly dispersed pure Mo particles, as observed by light optical microscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD). Most importantly, the solidification mechanism changes from planar to cellular mode. Microstructures after heat treatment indicate the β phase is metastable and locate the β transus around 900°C, and tensile properties are equal to or better than conventional β titanium alloys.
URI: 
ISSN: 1359-6454
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Surface and Interface Engineered Materials
Production Engineering, Machine Design and Automation (PMA) Section
× corresponding author
# (joint) last author

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Vrancken (2014) Acta Mat Beta Ti6Al4V10Mo via SLM PRE-PRINT1.pdfPre-reviewed version. Published 4270KbAdobe PDFView/Open

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