Publication: Introducción al procesado pulvimetalúrgico del Ti
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2011-04-01
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Abstract
El desarrollo de las nuevas tecnologías de extracción de titanio, que producen titanio elemental directamente en forma de polvo, sitúan a la pulvimetalurgia en un puesto estratégico para la fabricación de componentes de titanio. La disminución de coste del material base, junto a la economía de los procesos pulvimetalúrgicos, hacen más viable la diversificación de la industria del titanio, lo que permitiría alcanzar volúmenes de producción capaces de popularizar el metal y estabilizar su precio. En este trabajo se muestran algunas de las técnicas pulvimetalúrgicas empleadas para la fabricación de componentes de titanio a partir de los dos enfoques clásicos de mezcla de polvos elementales y el uso de polvos prealeados. Se describen entre otras las técnicas de prensado y sinterización convencional o compactación isostática en frío y caliente, que tratan de competir con las técnicas de procesado convencional, y se muestran algunas aplicaciones actuales y potenciales.
The development of new extraction processes to produce titanium in powder form leads Powder Metallurgy to an advantage position among the manufacturing processes for titanium. The cost reduction of base material, coupled with the economy of the powder metallurgy processes, give titanium industry the chance to diversify its products, which could lead to production volumes able to stabilise the price of the metal. This work reviews some of the Powder Metallurgy techniques for the manufacturing of titanium parts, and describes the two typical approaches for titanium manufacturing: ‘Blending Elemental’ and ‘Prealloyed Powders’. Among others, conventional pressing and sintering are described, which are compared with cold and hot isostatic pressing techniques. Real and potential applications are described.
The development of new extraction processes to produce titanium in powder form leads Powder Metallurgy to an advantage position among the manufacturing processes for titanium. The cost reduction of base material, coupled with the economy of the powder metallurgy processes, give titanium industry the chance to diversify its products, which could lead to production volumes able to stabilise the price of the metal. This work reviews some of the Powder Metallurgy techniques for the manufacturing of titanium parts, and describes the two typical approaches for titanium manufacturing: ‘Blending Elemental’ and ‘Prealloyed Powders’. Among others, conventional pressing and sintering are described, which are compared with cold and hot isostatic pressing techniques. Real and potential applications are described.
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Titanio, Procesado del titanio, Titanium, Powder metallurgy, Titanium processing, Pulvimetalurgia
Bibliographic citation
Revista de Metalurgia, (2011), 47(2), 169-188.