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Densification of titanium alloys obtained by powder metallurgy
Technical Paper
2010-36-0235
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Titanium alloys parts are ideally suited for advanced aerospace systems, chemical and naval applications and surgical implants because of its high strength-to-weight ratio, high resistance to many corrosive environments, and can be used over a wide range of temperatures. Powder metallurgy of titanium and Ti-based alloys may lead to the obtainment of components having weak-to-absent textures, uniform grain structure and higher homogeneity compared with conventional wrought products. In this work, results of the densification of Ti-6Al-4V, Ti-6Al-7Nb and Ti-13Nb-13Zr alloys after cold and isostatic pressing with subsequent densification by sintering between 900-1400°C using hydride titanium powders are presented. The samples were characterized by X-ray diffraction, scanning electron microscopy, Vickers indentation and density measurements. The results showed a higher densification with increasing sintering temperature, densification levels above 90% and the importance of using hydrided titanium powder in the final porosity.
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Henriques, V., de Oliveira, J., Diniz, E., and Lemos, T., "Densification of titanium alloys obtained by powder metallurgy," SAE Technical Paper 2010-36-0235, 2010, https://doi.org/10.4271/2010-36-0235.Also In
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