Ti6Al4V-PEEK multi-material structures - design, fabrication and tribological characterization focused on orthopedic implants

被引：32

作者：

Bartolomeu, F. ^{[1
]}

Abreu, C. S. ^{[1
,2
]}

Moura, C. G. ^{[1
]}

Costa, M. M. ^{[1
]}

Alves, N. ^{[3
]}

Silva, F. S. ^{[1
]}

Miranda, G. ^{[1
]}

机构：

[1] Univ Minho, Ctr Microelectro Mech Syst CMEMS UMinho, Campus Azurem, P-4800058 Guimaraes, Portugal

[2] Porto Super Engn Inst, ISEP, Phys Dept, Porto, Portugal

[3] Polytech Inst Leiria, Ctr Rapid & Sustainable Prod Dev, Rua Gen Norton Matos,Apartado 4133, P-2411901 Leiria, Portugal

来源：

TRIBOLOGY INTERNATIONAL | 2019年 / 131卷

关键词：

Ti6Al4V-PEEK; Selective laser melting; Multi-material design; Tribological characterization; MECHANICAL-PROPERTIES; TRIBOCORROSION BEHAVIOR; STAINLESS-STEEL; WEAR BEHAVIOR; CELLULAR STRUCTURES; TITANIUM IMPLANTS; PREDICTIVE MODELS; LASER; FATIGUE; ALLOY;

D O I：

10.1016/j.triboint.2018.11.017

中图分类号：

TH [机械、仪表工业];

学科分类号：

120111 [工业工程];

摘要：

A multi-material concept that gathers Ti6Al4V and PEEK properties in a cellular structured component was designed, fabricated and investigated targeting hip implants. SLM and pressure assisted injection techniques were used to obtain Ti6Al4V-PEEK multi-material structures. Aiming to reproduce to some extension the tribological phenomena occurring during and after hip implant insertion, five tribological tests were outlined and performed. The obtained results showed that the presence of PEEK on the Ti6Al4V-PEEK cellular structures led to a substantial improvement on the wear resistance (62% reduction in the mass loss) when compared to the material currently available on market for hip implants. The multi-material solution here investigated shows a good compromise between the primary stability after implant insertion and the wear performance.

引用

页码：672 / 678

页数：7

共 50 条

[1]

[Anonymous], ADV TRIBOL

[2]

Compensation strategy to reduce geometry and mechanics mismatches in porous biomaterials built with Selective Laser Melting [J].