Production of a low young modulus titanium alloy by powder metallurgy



Título del documento: Production of a low young modulus titanium alloy by powder metallurgy
Revista: Materials research
Base de datos: PERIÓDICA
Número de sistema: 000312851
ISSN: 1516-1439
Autores: 1

2
Instituciones: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Engenharia, Guaratingueta, Sao Paulo. Brasil
2Instituto de Aeronautica e Espaco, Divisao de Materiais, Sao Jose dos Campos, Sao Paulo. Brasil
Año:
Periodo: Oct-Dic
Volumen: 8
Número: 4
Paginación: 439-442
País: Brasil
Idioma: Inglés
Tipo de documento: Nota breve o noticia
Enfoque: Experimental
Resumen en inglés Titanium alloys have several advantages over ferrous and non-ferrous metallic materials, such as high strengthto-weight ratio and excellent corrosion resistance. A blended elemental titanium powder metallurgy process has been developed to offer low cost commercial products. The process employs hydride-dehydride (HDH) powders as raw material. In this work, results of the Ti-35Nb alloy sintering are presented. This alloy due to its lower modulus of elasticity and high biocompatibility is a promising candidate for aerospace and medical use. Samples were produced by mixing of initial metallic powders followed by uniaxial and cold isostatic pressing with subsequent densification by isochronal sintering between 900 up to 1600 °C, in vacuum. Sintering behavior was studied by means of microscopy and density. Sintered samples were characterized for phase composition, microstructure and microhardness by X-ray diffraction, scanning electron microscopy and Vickers indentation, respectively. Samples sintered at high temperatures display a fine plate-like a structure and intergranular b. A few remaining pores are still found and density above 90% for specimens sintered in temperatures over 1500 °C is reached
Disciplinas: Ingeniería
Palabras clave: Ingeniería mecánica,
Ingeniería metalúrgica,
Titanio,
Aleaciones,
Propiedades mecánicas,
Resistencia,
Corrosión,
Microestructuras
Keyword: Engineering,
Mechanical engineering,
Metallurgical engineering,
Titanium,
Alloys,
Mechanical properties,
Resistance,
Corrosion,
Microstructures
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