Artículos de revistas
Corrosion behaviour of PEEK or β-TCP-impregnated Ti6Al4V SLM structures targeting biomedical applications
Fecha
2019-12-01Registro en:
Transactions of Nonferrous Metals Society of China (English Edition), v. 29, n. 12, p. 2523-2533, 2019.
2210-3384
1003-6326
10.1016/S1003-6326(19)65160-5
2-s2.0-85077038282
Autor
University of Minho (UMinho)
University of Minho
Rua General Norton de Matos
Universidade Estadual Paulista (Unesp)
Institución
Resumen
Ti6Al4V cellular structures were produced by selective laser melting (SLM) and then filled either with beta-tricalcium phosphate (β-TCP) or PEEK (poly-ether-ether-ketone) through powder metallurgy techniques, to improve osteoconductivity and wear resistance. The corrosion behavior of these structures was explored considering its importance for the long-term performance of implants. Results revealed that the incorporation of open cellular pores induced higher electrochemical kinetics when being compared with dense structures. The impregnation of β-TCP and PEEK led to the creation of voids or gaps between the metallic matrix and the impregnated material which also influenced the corrosion behavior of the cellular structures.