Manufacture by selective laser melting and mechanical behavior of a biomedical Ti–24Nb–4Zr–8Sn alloy

In this paper, we present the results of using selective laser melting (SLM) to produce biomedical beta Ti–24Nb–4Zr–8Sn components, including the manufacture of a sample acetabular cup. The density of the material increases with increasing incident laser energy (i.e. decreasing laser scan speed) and reaches a near full density value of >99% without any post-processing. The mechanical properties of the as-processed material are also compared to those of conventionally processed material.

[1]  Taketo Sakuma,et al.  Multifunctional Alloys Obtained via a Dislocation-Free Plastic Deformation Mechanism , 2003, Science.

[2]  J. Kruth,et al.  A study of the microstructural evolution during selective laser melting of Ti–6Al–4V , 2010 .

[3]  Shujun Li,et al.  Super-elastic titanium alloy with unstable plastic deformation , 2005 .

[4]  S. Kuramoto,et al.  Elastic deformation behavior of multi-functional Ti-Nb-Ta-Zr-O alloys , 2005 .

[5]  Andrew G. Glen,et al.  APPL , 2001 .

[6]  R. Yang,et al.  Fatigue properties of a multifunctional titanium alloy exhibiting nonlinear elastic deformation behavior , 2009 .

[7]  A. Minor,et al.  The deformation of “Gum Metal” in nanoindentation , 2008 .

[8]  Shujun Li,et al.  Thermal stability and mechanical properties of nanostructured Ti-24Nb-4Zr-7.9Sn alloy , 2008 .

[9]  F. Klocke,et al.  Consolidation phenomena in laser and powder-bed based layered manufacturing , 2007 .

[10]  T. Sercombe,et al.  Heat treatment of Ti‐6Al‐7Nb components produced by selective laser melting , 2008 .

[11]  L. Murr,et al.  Microstructure and mechanical behavior of Ti-6Al-4V produced by rapid-layer manufacturing, for biomedical applications. , 2009, Journal of the mechanical behavior of biomedical materials.

[12]  Shujun Li,et al.  The effect of oxygen on α″ martensite and superelasticity in Ti–24Nb–4Zr–8Sn , 2011 .

[13]  Y. Oshida.  Bioscience and Bioengineering of Titanium Materials , 2007 .

[14]  Abdolreza Simchi,et al.  Direct laser sintering of metal powders: Mechanism, kinetics and microstructural features , 2006 .

[15]  Mitsuo Niinomi,et al.  Recent metallic materials for biomedical applications , 2002 .

[16]  J E Bechtold,et al.  Application of computer graphics in the design of custom orthopedic implants. , 1986, The Orthopedic clinics of North America.

[17]  A. Singh,et al.  Ti based biomaterials, the ultimate choice for orthopaedic implants – A review , 2009 .

[18]  T. Cui,et al.  Fatigue properties of a metastable beta-type titanium alloy with reversible phase transformation. , 2008, Acta biomaterialia.

[19]  A. Esnaola,et al.  Study of mechanical properties of AISI 316 stainless steel processed by “selective laser melting”, following different manufacturing strategies , 2010 .