Low elastic modulus Ti–17Nb processed by powder injection moulding and post-sintering heat treatments. (December 2014)

• Record Type: Journal Article
• Authors: Bidaux, J.-E.; Pasquier, R.; Rodriguez-Arbaizar, M.; Girard, H.; Carreño-Morelli, E.
• Is Part Of: Powder metallurgy. Volume 57:Number 5(2014)
• Page Start: 320
• Page End: 323
• Publication Date: 2014-12
• Subjects: Powder metallurgy -- Periodicals; 671.3705
• DOI: 10.1179/0032589914Z.000000000209
• Languages: English
• ISSNs: 0032-5899

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>Ti–Nb alloys are attractive as biomaterials because of their excellent combination of low elastic modulus, high strength, corrosion resistance and enhanced biocompatibility. The effect of a post-sintering quenching treatment on the microstructure and mechanical properties of powder injection moulded Ti–17Nb has been investigated. Tensile test specimens were produced using a feedstock based on blended elemental powders, some of which were solution-treated in the β phase field and water quenched. Both as-sintered and quenched alloys had densities 95·5% of theoretical. The as-sintered material showed an α−β structure, whereas after quenching a fully martensitic α″ structure was obtained. The modulus of elasticity of the water-quenched alloy (∼45 GPa) was about 40% lower than that of the as-sintered alloy (∼76 GPa).</p> </abstract>