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Materials 2013, 6(10), 4868-4878; doi:10.3390/ma6104868

Microstructure and Mechanical Behavior of Porous Ti–6Al–4V Processed by Spherical Powder Sintering

1
Department of Mechanical Engineering and Construction, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló de la Plana, Spain
2
Materials Technology Institute, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
*
Author to whom correspondence should be addressed.
Received: 18 July 2013 / Revised: 29 August 2013 / Accepted: 21 October 2013 / Published: 23 October 2013
(This article belongs to the Special Issue Titanium Materials for Biomedical Application 2013)
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Abstract

Reducing the stiffness of titanium is an important issue to improve the behavior of this material when working together with bone, which can be achieved by generating a porous structure. The aim of this research was to analyze the porosity and mechanical behavior of Ti–6Al–4V porous samples developed by spherical powder sintering. Four different microsphere sizes were sintered at temperatures ranging from 1300 to 1400 °C for 2, 4 and 8 h. An open, interconnected porosity was obtained, with mean pore sizes ranging from 54.6 to 140 µm. The stiffness of the samples diminished by as much as 40% when compared to that of solid material and the mechanical properties were affected mainly by powder particles size. Bending strengths ranging from 48 to 320 MPa and compressive strengths from 51 to 255 MPa were obtained.
Keywords: porous titanium; microsphere sintering; bending strength; compressive strength; stiffness; metallic implant porous titanium; microsphere sintering; bending strength; compressive strength; stiffness; metallic implant
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MDPI and ACS Style

Reig, L.; Tojal, C.; Busquets, D.J.; Amigó, V. Microstructure and Mechanical Behavior of Porous Ti–6Al–4V Processed by Spherical Powder Sintering. Materials 2013, 6, 4868-4878.

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