A 3D-Printed Ultra-Low Young's Modulus β-Ti Alloy for Biomedical Applications.

3D-printing Young’s modulus bone prosthesis cytotoxicity orthopaedic biomaterials β-Titanium alloy

Journal

Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929

Informations de publication

Date de publication:
20 Jun 2020
Historique:
received: 22 05 2020
revised: 14 06 2020
accepted: 17 06 2020
entrez: 25 6 2020
pubmed: 25 6 2020
medline: 25 6 2020
Statut: epublish

Résumé

The metastable β-Ti21S alloy is evaluated as a potential candidate for biomedical parts. Near fully dense (99.75 ± 0.02%) samples are additively manufactured (that is, 3D-printed) by laser powder-bed fusion (L-PBF). In the as-built condition, the material consists of metastable β-phase only, with columnar grains oriented along the building direction. The material exhibits an extremely low Young's modulus (52 ± 0.3 GPa), which was never reported for this type of alloy. The combination of good mechanical strength (σ

Identifiants

pubmed: 32575750
pii: ma13122792
doi: 10.3390/ma13122792
pmc: PMC7345763
pii:
doi:

Types de publication

Journal Article

Langues

eng

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Auteurs

Massimo Pellizzari (M)

Department of Industrial Engineering, University of Trento, 38123 Trento, Italy.

Alireza Jam (A)

Department of Industrial Engineering, University of Trento, 38123 Trento, Italy.

Matilde Tschon (M)

Laboratory of Preclinical and Surgical Studies, IRCCS-Istituto Ortopedico Rizzoli, 40136 Bologna, Italy.

Milena Fini (M)

Laboratory of Preclinical and Surgical Studies, IRCCS-Istituto Ortopedico Rizzoli, 40136 Bologna, Italy.

Carlo Lora (C)

SISMA Spa, 36013 Piovene Rocchette (VI), Italy.

Matteo Benedetti (M)

Department of Industrial Engineering, University of Trento, 38123 Trento, Italy.

Classifications MeSH