Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/52571

TitleTribological behavior of Ti6Al4V cellular structures produced by Selective Laser Melting
Author(s)Bartolomeu, F.
Sampaio, Miguel
Carvalho, O.
Pinto, E.
Alves, N.
Gomes, J. R.
Silva, Filipe Samuel
Miranda, G.
KeywordsSelective Laser Melting (SLM)
Ti6Al4V
Cellular structures
Wear
Friction
Issue date2017
PublisherElsevier
JournalJournal of the Mechanical Behavior of Biomedical Materials
Abstract(s)Additive manufacturing (AM) technologies enable the fabrication of innovative structures with complex geometries not easily manufactured by traditional processes. Regarding metallic cellular structures with tailored/customized mechanical and wear performance aiming to biomedical applications, Selective Laser Melting (SLM) is a remarkable solution for their production. Focusing on prosthesis and implants, in addition to a suitable Young's modulus it is important to assess the friction response and wear resistance of these cellular structures in a natural environment. In this sense, five cellular Ti6Al4V structures with different open-cell sizes (100–500 μm) were designed and produced by SLM. These structures were tribologicaly tested against alumina using a reciprocating sliding ball-on-plate tribometer. Samples were submerged in Phosphate Buffered Saline (PBS) fluid at 37 °C, in order to mimic in some extent the human body environment. The results showed that friction and wear performance of Ti6Al4V cellular structures is influenced by the structure open-cell size. The higher wear resistance was obtained for structures with 100 μm designed open-cell size due to the higher apparent area of contact to support tribological loading.
TypeArticle
URIhttp://hdl.handle.net/1822/52571
DOI10.1016/j.jmbbm.2017.01.004
ISSN1751-6161
e-ISSN1878-0180
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:DEM - Artigos em revistas de circulação internacional com arbitragem científica

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