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Fabrication of multiple-layered gradient cellular metal scaffold via electron beam melting for segmental bone reconstruction
Natl Res Tomsk Polytech Univ, Russia.
Natl Res Tomsk Polytech Univ, Russia.
Natl Res Tomsk Polytech Univ, Russia.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.ORCID iD: 0000-0003-2964-9500
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2017 (English)In: Materials & design, ISSN 0264-1275, E-ISSN 1873-4197, Vol. 133, p. 195-204Article in journal (Refereed) Published
Abstract [en]

The triple-and double-layered mesh Ti-based alloy scaffolds were successfully fabricated using electron beam melting (EBM). In this study Ti-based alloy cylindrical scaffolds with different 3D architectures intended for the segmental bone defect treatment were systematically compared. All lattice-like scaffolds were additively manufactured using EBM technology from Ti6Al4V to mimic the structures of human trabecular bone. Cylindrically-shaped lattice scaffolds (outer diameter of 15 mm and length of 35 mm) of five different types were designed and manufactured. Four types were tubular with inner hole diameter of 5 mm and two lattice layers of different density. Fifth type was cylindrical with three lattice layers of different density. In all samples outer lattice layer was most dense, and inner layers-least dense. Mechanical properties of scaffolds were determined by conducting uniaxial compression testing. The strain-stress curves for all samples with gradient porosities showed considerable ductility.

Place, publisher, year, edition, pages
2017. Vol. 133, p. 195-204
Keywords [en]
Additive manufacturing, Electron beam melting, Titanium alloy Ti6Al4V, Compression testing, Scaffold
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-31888DOI: 10.1016/j.matdes.2017.07.059ISI: 000411364800021Scopus ID: 2-s2.0-85026744867OAI: oai:DiVA.org:miun-31888DiVA, id: diva2:1150196
Available from: 2017-10-18 Created: 2017-10-18 Last updated: 2017-11-29Bibliographically approved

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Koptioug, AndreiRännar, Lars-Erik

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