Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 252, Issue -, Pages 821-829Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2017.10.052
Keywords
Additive manufacturing; Selective laser melting; Laser powder bed fusion; Ti-based alloy; Biocompatible superelastic alloy; Processing parameters
Funding
- NSERC (Natural Sciences and Engineering Research Council of Canada)
- Ministry of Education and Sciences of the Russian Federation [K2-2016-011, 11.1495.2017/PP]
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The laser powder bed fusion parameters were determined for a novel biomedical Ti-18Zr-14Nb (at%) alloy using both analytical and experimental approaches. An analytical model was used to calculate the laser powder bed fusion parameters such as laser power, scanning speed and hatching space providing the energy density on the powder bed surface ranging from 9 to 85 J/mm(3), and the build rate - from 12 to 52 cm(3)/h. A technological processing window corresponding to a 25-45 J/mm(3) energy density range and a 10-25 cm(3)/h build rate range is recommended for the fabrication of the fully dense Ti-18Zr-14Nb alloy with improved surface roughness.
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