Bartolomeu, F.Costa, M.M.Gomes, J.R.Alves, N.Silva, F.S.Miranda, G.2023-04-242023-04-242019F. Bartolomeu, M.M. Costa, J.R. Gomes, N. Alves, C.S. Abreu, F.S. Silva, G. Miranda, Implant surface design for improved implant stability – A study on Ti6Al4V dense and cellular structures produced by Selective Laser Melting, Tribology International, Volume 129, 2019, Pages 272-282, ISSN 0301-679X, https://doi.org/10.1016/j.triboint.2018.08.0120301-679X1879-2464http://hdl.handle.net/10400.8/8445Focusing 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.engTi6Al4VSelective laser meltingImplant surface designStatic and dynamic frictionjournal article10.1016/j.triboint.2018.08.012