Corrosion behaviour of PEEK or β-TCP-impregnated Ti6Al4V SLM structures targeting biomedical applications  

PEEK或β-TCP充填的生物医用Ti6Al4V激光选区熔化结构的腐蚀行为（英文）

作　　者：M.M.COSTA T.A.DANTAS F.BARTOLOMEU N.ALVES F.S.SILVA G.MIRANDA F.TOPTAN 

机构地区：[1]Center for Micro Electro Mechanical Systems(CMEMS),University of Minho(UMinho),4800-058 Guimarães,Portugal [2]MIT Portugal Program,School of Engineering,University of Minho,Guimarães,Portugal [3]Centre for Rapid and Sustainable Product Development Polytechnic Institute of Leiria,Rua General Norton de Matos,Apartado 4133,Leiria,Portugal [4]IBTN/Br–Brazilian Branch of the Institute of Biomaterials,Tribocorrosion and Nanomedicine,UNESP,Campus de Bauru,Av.Eng.Luiz Edmundo Carrijo Coube,14-01,17033-360,Bauru,SP,Brazil

出　　处：《Transactions of Nonferrous Metals Society of China》2019年第12期2523-2533,共11页中国有色金属学报（英文版）

基　　金：supported by FCT through the grants PD/BD/140202/2018,SFRH/BD/140191/2018 and SFRH/BD/128657/2017;the projects PTDC/EMS-TEC/5422/2014 and NORTE-01-0145-FEDER-000018-HAMa BICo;supported by FCT with the reference project UID/EEA/04436/2019;the financial support through the M-ERA-NET/0001/2015 project(FCT)

摘　　要：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 ofβ-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.用激光选区熔化(SLM)制备Ti6Al4V多孔结构,通过粉末冶金法充填β-TCP或PEEK,以期提高材料的骨传导性和耐磨性能。考虑到这些结构对种植体长期性能的重要性,对其腐蚀行为进行探讨。结果表明,与致密结构相比,开放孔洞的引入导致更高的电化学动力学。β-TCP和PEEK充填导致空洞或金属基体与充填材料之间产生间隙,影响多孔结构的腐蚀行为。

关 键 词：Ti6Al4V cellular structures corrosion multimaterial design poly-ether-ether-ketone(PEEK) beta-tricalcium phosphate(β-TCP) 

分 类 号：TG1[金属学及工艺—金属学]