Artículo
Study of the Effect of the Floating Die Compaction on Mechanical Properties of Titanium Foams
Autor/es | Sauceda, Sergio
Lascano, Sheila Béjar, Luis Neves, Guilherme Oliveira Chicardi Augusto, Ernesto Salvo, Christopher Aguilar, Claudio |
Departamento | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte |
Fecha de publicación | 2020-12 |
Fecha de depósito | 2022-01-25 |
Publicado en |
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Resumen | Titanium (Ti) and its alloys are used for biomedical applications because of their high
resistance to corrosion, good strength-to-weight ratio, and high fatigue resistance. However, a problem
that compromises the performance ... Titanium (Ti) and its alloys are used for biomedical applications because of their high resistance to corrosion, good strength-to-weight ratio, and high fatigue resistance. However, a problem that compromises the performance of the material is the mismatch between Young’s modulus of Ti and the bone, which brings about stress shielding. One strategy that has been investigated to reduce this di erence is the manufacture of Ti-based foams, using powder metallurgy (PM) methods, such as the space-holder technique. However, in the uniaxial compaction, both non-uniform density distribution and mechanical properties remain because of the compaction method. This work studies the influence of compaction by adopting a floating-action die related to a single-action die (SAD), on the density of green and sintered Ti foams with porosities around 50 vol.% characterized by optical microscopy, ultrasound analysis, compression tests, and microhardness. The compaction process employing a floating-action die generates Ti foams with a higher density up to 10% with more control of the spacer particle added compared to the single-action die. Furthermore, compaction method has no relevant e ect on microhardness and Young’s modulus, which allows getting better consolidated samples with elastic modules similar to those of human bone. |
Agencias financiadoras | Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT). Chile Fondo de Equipamiento Científico y Tecnológico (FONDEQUIP). Chile |
Identificador del proyecto | FONDECYT 1190797
FONDEQUIP/EQM 140095 |
Cita | Sauceda, S., Lascano, S., Béjar, L., Neves, G.O., Chicardi Augusto, E., Salvo, C. y Aguilar, C. (2020). Study of the Effect of the Floating Die Compaction on Mechanical Properties of Titanium Foams. Metals, 10 (12). Article number 1621. |
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