Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/71426

TitleImplant surface design for improved implant stability - a study on Ti6Al4V dense and cellular structures produced by selective laser melting
Author(s)Bartolomeu, Flávio
Costa, M. M.
Gomes, J. R.
Alves, N.
Abreu, C. S.
Silva, Filipe Samuel
Miranda, Maria Georgina Macedo
KeywordsTi6Al4V
Selective laser melting
Implant surface design
Static and dinamic friction
Static and dynamic friction
Issue date2019
PublisherElsevier
JournalTribology International
CitationTribology International 129 (2019) 272-282
Abstract(s)Focusing on implant surface design, aiming to improve implant primary stability, SLM technology was explored to produce dense and cellular structured Ti6Al4V specimens. The SLM specimens and also a commercial casted/forged Ti6Al4V group, were sandblasted and acid-etched to obtain a moderate surface roughness topography, typically used in implant manufacturing. Ti6Al4V-bone interaction and tribological performance were assessed by performing sliding tests aiming to replicate in some extension the insertion of a hip implant. The results shown a 24 and 32% higher kinetic friction coefficient values when comparing the cellular structures with the conventional casted/forged Ti6Al4V. These friction results together with a high amount of adhered bone are promising evidences of a higher efficiency of Ti6Al4V cellular structures for enhancing implant stability.
TypeArticle
URIhttp://hdl.handle.net/1822/71426
DOI10.1016/j.triboint.2018.08.012
ISSN0301-679X
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0301679X18304006#!
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:DEM - Artigos em revistas de circulação internacional com arbitragem científica

Files in This Item:
File Description SizeFormat 
F Bartolomeu at al_Trib Int 2019.pdf
  Restricted access
6,25 MBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID