Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/89970
Título: | Multi-functional Ti6Al4V-CoCrMo implants fabricated by multi-material laser powder bed fusion technology: a disruptive material’s design and manufacturing philosophy |
Autor(es): | Bartolomeu, Flávio Carvalho, Óscar Samuel Novais Gasik, M. Silva, Filipe Samuel |
Palavras-chave: | 3D multi-material Additive manufacturing Laser-powder-bed-fusion Orthopedics Acetabular cup |
Data: | Fev-2023 |
Editora: | Elsevier 1 |
Revista: | Journal of the Mechanical Behavior of Biomedical Materials |
Citação: | F. Bartolomeu, O. Carvalho, M. Gasik, F.S. Silva, Multi-functional Ti6Al4V-CoCrMo implants fabricated by multi-material laser powder bed fusion technology: A disruptive material's design and manufacturing philosophy, Journal of the Mechanical Behavior of Biomedical Materials, Volume 138, 2023, 105583, ISSN 1751-6161, https://doi.org/10.1016/j.jmbbm.2022.105583. |
Resumo(s): | A home-made 3D Multi-Material Laser Powder Bed Fusion (3DMMLPBF) technology was exploited to manu-facture novel multi-material Ti6Al4V-CoCrMo parts. This multi-material concept aims to bring to life a new and disruptive material's design concept for the acetabular cup. Only using a layer-by-layer approach it is possible to manufacture an acetabular cup capable to combine CoCrMo alloy wear resistance and Ti6Al4V alloy bone -friendly nature, in a single component, fabricated at once. This system works with multiple powder deposi-tion functions and vacuum cleaning procedures allowing to use two different powders (Ti6Al4V and CoCrMo) in each layer and thus, allowing to construct 3D Multi-Material transition between distinct materials, point-by-point and layer-by-layer. In this sense, the manufacturing strategies and the functional transition between Ti6Al4V and CoCrMo with a mechanical interlocking were analyzed and discussed both from mechanical and metallurgical point of view. A small diffusion area and no evidence of defects or cracks can be found in the transition's regions between the distinct materials which are strong evidences of a solid metallurgical bonding at the interfacial regions of Ti6Al4V and CoCrMo materials. A functional transition is also obtained through a design capable to provide a 3D mechanical interlocking with potential of assuring, simultaneously, tensile and compressive strength. This proof of concept might be a step-ahead in Laser Powder Bed Fusion in which the most desired intrinsic of individual materials can be combined in a single component targeting biomedical disruptive solutions. |
Tipo: | Artigo |
Descrição: | Available online 24 November 2022 |
URI: | https://hdl.handle.net/1822/89970 |
DOI: | 10.1016/j.jmbbm.2022.105583 |
ISSN: | 1751-6161 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S175161612200488X?via%3Dihub |
Arbitragem científica: | yes |
Acesso: | Acesso restrito autor |
Aparece nas coleções: | CMEMS - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Multi-functional Ti6Al4V-CoCrMo implants fabricated by multi-material laser powder bed fusion technology-A disruptive material's design and manufacturing philosophy.pdf Acesso restrito! | 6,29 MB | Adobe PDF | Ver/Abrir |