Additive manufacturing of pure Ti with superior mechanical performance, low cost, and biocompatibility for potential replacement of Ti-6Al-4V

Y.P. Dong; J.C. Tang; D.W. Wang; N. Wang; Z.D. He; J. Li; D.P. Zhao; M. Yan

Materials & Design (Nov 2020)

Additive manufacturing of pure Ti with superior mechanical performance, low cost, and biocompatibility for potential replacement of Ti-6Al-4V

Y.P. Dong,
J.C. Tang,
D.W. Wang,
N. Wang,
Z.D. He,
J. Li,
D.P. Zhao,
M. Yan

Affiliations

Y.P. Dong: Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
J.C. Tang: Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
D.W. Wang: Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
N. Wang: Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; College of new materials and new energies, Shenzhen Technology University, Shenzhen 518118, China; Key Laboratory of Laser Intelligent Manufacturing in Digital Dentistry, Shenzhen Technology University, Shenzhen 518118, China; Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China; College of Biology, Hunan University, Changsha 410082, China
Z.D. He: Key Laboratory of Laser Intelligent Manufacturing in Digital Dentistry, Shenzhen Technology University, Shenzhen 518118, China
J. Li: Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China
D.P. Zhao: College of Biology, Hunan University, Changsha 410082, China; Corresponding authors.
M. Yan: Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Corresponding authors.

Journal volume & issue: Vol. 196
p. 109142

Abstract

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Although numerous reports have elucidated the neurotoxic impacts of Ti-6Al-4V (Ti64) due to the presence of vanadium, it is the most widely used biomedical Ti material. This is because it exhibits significantly better mechanical performance characteristics than those of pure Ti. In addition to the possibility of facilitating the production of customized medicines, selective laser melting (SLM) additive manufacturing (AM) can enable pure Ti to match the properties of Ti64 by utilizing several mechanisms such as grain refinement and solid solution strengthening. These results can be obtained due to the high cooling rate of the AM process and via a possible modification in the alloy chemistry of Ti. Herein, we report a novel approach that endows the pure Ti prepared via AM with excellent mechanical properties (ultimate tensile strength, yield strength, elongation, and microhardness of 1057.05 MPa, 784.59 MPa, 24.09%, and 307 Hv, respectively), corrosion resistance, and biocompatibility, while significantly reducing the cost of the powder. The pure Ti material developed in this study has significant potential for use as an advanced biomedical material in a variety of applications such as dental and bone structure replacement. Furthermore, it can act as a low-cost alternative to biomedical materials such as Ti-6Al-4V.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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