Materials 2013, 6(12), 5700-5712; doi:10.3390/ma6125700
Article

Production of Porous β-Type Ti–40Nb Alloy for Biomedical Applications: Comparison of Selective Laser Melting and Hot Pressing

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Received: 30 October 2013; in revised form: 18 November 2013 / Accepted: 29 November 2013 / Published: 6 December 2013
(This article belongs to the Special Issue Titanium Materials for Biomedical Application 2013)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: We used selective laser melting (SLM) and hot pressing of mechanically-alloyed β-type Ti–40Nb powder to fabricate macroporous bulk specimens (solid cylinders). The total porosity, compressive strength, and compressive elastic modulus of the SLM-fabricated material were determined as 17% ± 1%, 968 ± 8 MPa, and 33 ± 2 GPa, respectively. The alloy’s elastic modulus is comparable to that of healthy cancellous bone. The comparable results for the hot-pressed material were 3% ± 2%, 1400 ± 19 MPa, and 77 ± 3 GPa. This difference in mechanical properties results from different porosity and phase composition of the two alloys. Both SLM-fabricated and hot-pressed cylinders demonstrated good in vitro biocompatibility. The presented results suggest that the SLM-fabricated alloy may be preferable to the hot-pressed alloy for biomedical applications, such as the manufacture of load-bearing metallic components for total joint replacements.
Keywords: novel β-phase Ti-based alloys; static biomechanical behavior; cytotoxicity and cell proliferation
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MDPI and ACS Style

Zhuravleva, K.; Bönisch, M.; Prashanth, K.G.; Hempel, U.; Helth, A.; Gemming, T.; Calin, M.; Scudino, S.; Schultz, L.; Eckert, J.; Gebert, A. Production of Porous β-Type Ti–40Nb Alloy for Biomedical Applications: Comparison of Selective Laser Melting and Hot Pressing. Materials 2013, 6, 5700-5712.

AMA Style

Zhuravleva K, Bönisch M, Prashanth KG, Hempel U, Helth A, Gemming T, Calin M, Scudino S, Schultz L, Eckert J, Gebert A. Production of Porous β-Type Ti–40Nb Alloy for Biomedical Applications: Comparison of Selective Laser Melting and Hot Pressing. Materials. 2013; 6(12):5700-5712.

Chicago/Turabian Style

Zhuravleva, Ksenia; Bönisch, Matthias; Prashanth, Konda G.; Hempel, Ute; Helth, Arne; Gemming, Thomas; Calin, Mariana; Scudino, Sergio; Schultz, Ludwig; Eckert, Jürgen; Gebert, Annett. 2013. "Production of Porous β-Type Ti–40Nb Alloy for Biomedical Applications: Comparison of Selective Laser Melting and Hot Pressing." Materials 6, no. 12: 5700-5712.

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