Beta Ti-45Nb and Ti-50Nb Alloys Produced by Powder Metallurgy for Aerospace Application

G.V. Martins; Cosme Roberto Moreira Silva; C.A. Nunes; Vladimir J. Trava-Airoldi; L.A. Borges; João Paulo Barros Machado

doi:10.4028/www.scientific.net/MSF.660-661.405

Paper Titles

Effect of Cr₃C₂-NiCr Powder Characteristics on Structure and Properties of Thermal Sprayed Nanostructured Coatings
p.379

Synthesis and Characterization of TiO₂ Nanoparticles by the Method Pechini
p.385

Porous 3-D Titanium Substrates Obtained by Powder Metallurgy for Nanodiamond Film Growth
p.391

Preparation of Cutting Inserts with Binder of UHCS
p.399

Beta Ti-45Nb and Ti-50Nb Alloys Produced by Powder Metallurgy for Aerospace Application
p.405

Fluid Dynamic Study of the Fluidized Bed Wit Jambu Seeds (Sphilantes oleracea L.)
p.413

Effect of Process Variables on Efficiency and Particle Growth of Spilanthes oleracea Seeds Coating
p.419

Study of the Viability to Obtain Quasicrystal in the Composition AlCuFe Using High-Energy Milling, Followed by Pressing and Sintering
p.426

Coating of Granular Polymeric Spacers with Copper by Sputter-Deposition for Enhancing Cell Wall Structure of Sintered Highly Porous Aluminum Materials
p.432

HomeMaterials Science ForumMaterials Science Forum Vols. 660-661Beta Ti-45Nb and Ti-50Nb Alloys Produced by Powder...

Beta Ti-45Nb and Ti-50Nb Alloys Produced by Powder Metallurgy for Aerospace Application

Abstract:

Beta titanium alloys parts are used on advanced aerospace systems because of their high strength to weight ratio and excellent corrosion resistance. Production of powder metallurgy titanium alloys components may lead to a substantial reduction in the cost, compared to those produced by conventional cast and wrought processes, because additional working operations and material waste can be avoided. In this work, beta Ti-45Nb and Ti-50Nb were produced by the blended elemental technique, followed by uniaxial and cold isostatic pressing with subsequent densification by sintering. Sintered samples were characterized for phase composition by XRD, microstructure by SEM, hardness by Vickers indentation, specific mass by the Archimedes method and elastic modulus by resonance ultrasound. The sintered samples presented only the beta phase, higher hardness and lower elastic modulus when compared to Ti6Al4V alloy and experimental specific mass value near theoretical specific mass. These characteristics are adequate for application on several aerospace parts.