Commenced in January 2007
Paper Count: 31533
The High Strength Biocompatible Wires of Commercially Pure Titanium
Abstract:COMTES FHT has been active in a field of research and development of high-strength wires for quite some time. The main material was pure titanium. The primary goal of this effort is to develop a continuous production process for ultrafine and nanostructured materials with the aid of severe plastic deformation (SPD). This article outlines mechanical and microstructural properties of the materials and the options available for testing the components made of these materials. Ti Grade 2 and Grade 4 wires are the key products of interest. Ti Grade 2 with ultrafine to nano-sized grain shows ultimate strength of up to 1050 MPa. Ti Grade 4 reaches ultimate strengths of up to 1250 MPa. These values are twice or three times as higher as those found in the unprocessed material. For those fields of medicine where implantable metallic materials are used, bulk ultrafine to nanostructured titanium is available. It is manufactured by SPD techniques. These processes leave the chemical properties of the initial material unchanged but markedly improve its final mechanical properties, in particular, the strength. Ultrafine to nanostructured titanium retains all the significant and, from the biological viewpoint, desirable properties that are important for its use in medicine, i.e. those properties which made pure titanium the preferred material also for dental implants.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1131932Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 724
 J.R. Weertman, D. Farkas et al., Structure and mechanical behavior of bulk nanocrystalline materials, MRS Bulletin 24 (1999), 2, 44-53.
 R.Z. Valiev, R.K. Islamgaliev, I.V. Alexandrov, Bulk nanostructured materials from severe plastic deformation, Progress in Materials Science, 45 (2000) 2, doi:10.1016/S0079-6425(99)00007-9
 A. Mishra, B. Kad et al., Microstructural evolution in copper subjected to severe plastic deformation: Experiments and analysis, Acta Materialia 55 (2007), 1, 13-28.
 J. Hodek, T. Kubina et al., FEM Model of Continuous Extrusion of Titanium in Deform Software, “COMAT 2012”, Pilsen, 2012.
 J.R. Dawson, ConformTM technology for cost effective manufacture of copper strip, Technical report, BWE Ltd, UK.
 T. Kubina, J. Dlouhý, M. Kover, Preparation and thermal stability of ultra-fine and nano-grained commercially pure titanium wires using CONFORM equipment, Mater. Tehnol., 49 (2015) 2, doi: 10.17222/mit.2013.226.
 M. Duchek, T. Kubina, J. Hodek, J. Dlouhy, Development of the production of ultrafine-grained titanium with the conform equipment, Mater. Tehnol., 47 (2013) 4
 M. Zemko, T. Kubina, J. Dlouhý, J. Hodek, Technological aspects of preparation of nanostructured titanium wire using a CONFORM machine, IOP Conference Series: Materials Science and Engineering, 63 (2014) 2, doi: 10.1088/1757-899X/63/1/012049
 L. Ostrovska, L. Vistejnova, J. Dzugan, P. Slama, T. Kubina, E. Ukraintsev, D. Kubies, M. Kralickova, M. Kalbacova, Biological evaluation of ultra-fine titanium with improved mechanical strength for dental implant engineering, J Mater Sci, 23 (2015), doi:10.1007/s10853-015-9619-3