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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Chromiński, Witold
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Albumin suppresses oxidation of Ti-Nb alloy in the simulated inflammatory environment
- 2021Microstructure, Texture and Mechanical Properties of Mg-6Sn Alloy Processed by Differential Speed Rollingcitations
- 2019Investigation of different severe plastic deformation methods effect on Ti13Nb13Zr
- 2019Tribological behavior of a hydrostatically extruded ultra-fine grained Ti-13Nb-13Zr alloycitations
- 2019The importance of microstructural heterogeneities in the work hardening of ultrafine-grained aluminum, studied by in-situ TEM straining and mechanical testscitations
- 2018Enhanced strength and electrical conductivity of ultrafine-grained Al-Mg-Si alloy processed by hydrostatic extrusioncitations
- 2018Mechanisms of plastic deformation in ultrafine-grained aluminium – In-situ and ex-post studiescitations
- 2017Ultrafine-Grained Plates of Al-Mg-Si Alloy Obtained by Incremental Equal Channel Angular Pressing: Microstructure and Mechanical Propertiescitations
- 2017Microstructure and Texture Evolutions of Biomedical Ti-13Nb-13Zr Alloy Processed by Hydrostatic Extrusioncitations
- 2017Mechanical properties and corrosion resistance of ultrafine grained austenitic stainless steel processed by hydrostatic extrusioncitations
- 2017Accumulation and mechanism of the fatigue damage for a nickel based superalloy
- 2017Evaluation of mechanical properties and anisotropy of ultra-fine grained 1050 aluminum sheets produced by incremental ECAPcitations
- 2016Mechanical properties, structural and texture evolution of biocompatible Ti–45Nb alloy processed by severe plastic deformationcitations
- 2016Incremental ECAP as a method to produce ultrafine grained aluminium platescitations
- 2015Microstructure evolution in aluminium 6060 during Incremental ECAP
- 2015Efficient method of producing ultrafine grained non-ferrous metals
- 2015Grain refinement in technically pure aluminium plates using incremental ECAP processingcitations
- 2014Enhancement of mechanical properties of biocompatible Ti-45Nb alloy by hydrostatic extrusioncitations
- 2014Incremental ECAP as a novel tool for producing ultrafine grained aluminium platescitations
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article
Enhancement of mechanical properties of biocompatible Ti-45Nb alloy by hydrostatic extrusion
Abstract
<p>β-Type titanium alloys are promising materials for orthopaedic implants due to their relatively low Young's modulus and excellent biocompatibility. However, their strength is lower than those of α- or α + β-type titanium alloys. Grain refinement by severe plastic deformation (SPD) techniques provides a unique opportunity to enhance mechanical properties to prolong the lifetime of orthopaedic implants without changing their chemical composition. In this study, β-type Ti-45Nb (wt%) biomedical alloy in the form of 30 mm rod was subjected to hydrostatic extrusion (HE) to refine the microstructure and improve its mechanical properties. HE processing was carried out at room temperature without intermediate annealing in a multi-step process, up to an accumulative true strain of 3.5. Significant microstructure refinement from a coarse-grained region to an ultrafine-grained one was observed by optical and transmission electron microscopy. Vickers hardness measurements (HV<sub>0.2</sub>) demonstrated that the strength of the alloy increased from about 150 to 210 HV<sub>0.2</sub>. Nevertheless, the measurements of Young's modulus by nanoindentation showed no significant changes. This finding is substantiated by X-ray diffraction analyses which did not exhibit any phase transformation out of the bcc phase being present still before processing by HE. These results thus indicate that HE is a promising SPD method to obtain significant grain refinement and enhance strength of β-type Ti-45Nb alloy without changing its low Young's modulus, being one prerequisite for biomedical application. © 2014 The Author(s).</p>