Study of the Effect of Nanosecond Laser Texturing on the Corrosion Behavior of Ti6Al4V and Ti6Al4V Parts Produced by Powder Bed Fusion
Abstract Combining metallic additive manufacturing with laser texturing could be an alternative in obtaining parts with functional hydrophilic surfaces, which improves osteointegration. Careful study of the corrosion behavior of the surfaces obtained is necessary, because the evolution of this phenomenon can influence the osteointegration of the implant, causing the release of metal ions in the body and even the rejection of the component. This study compared the corrosion behavior of laser texturing Ti6Al4V components with components manufactured using laser power bed fusion of the same alloy followed by laser texturing. Their microstructure, roughness, wettability, and electrochemical behavior were analyzed, and different morphologies and microtopographies were observed comparing both samples. The electrochemical tests obtained indicate that Ti6Al4V showed higher corrosion resistance than L-PBF Ti6Al4V after laser texturing. The results suggest that laser texturing can encourage cell proliferation and osseointegration on the surface of Ti6Al4V biomedical implants.
Citação
@online{queiroz,_fernanda2023,
author = {Queiroz, Fernanda, Martins and Gleicy De Lima Xavier ,
Ribeiro and Castro, Renato Spacini, De and Santos, Rogério Góes, Dos
and Alexandre , Vieira and Maysa , Terada and Aline De Fátima Santos
, Bugarin and Rossi, Wagner, De and Isolda , Costa},
title = {Study of the Effect of Nanosecond Laser Texturing on the
Corrosion Behavior of Ti6Al4V and Ti6Al4V Parts Produced by Powder
Bed Fusion},
volume = {12},
number = {3},
date = {2023-09-01},
doi = {10.1520/MPC20220109},
langid = {pt-BR},
abstract = {Abstract Combining metallic additive manufacturing with
laser texturing could be an alternative in obtaining parts with
functional hydrophilic surfaces, which improves osteointegration.
Careful study of the corrosion behavior of the surfaces obtained is
necessary, because the evolution of this phenomenon can influence
the osteointegration of the implant, causing the release of metal
ions in the body and even the rejection of the component. This study
compared the corrosion behavior of laser texturing Ti6Al4V
components with components manufactured using laser power bed fusion
of the same alloy followed by laser texturing. Their microstructure,
roughness, wettability, and electrochemical behavior were analyzed,
and different morphologies and microtopographies were observed
comparing both samples. The electrochemical tests obtained indicate
that Ti6Al4V showed higher corrosion resistance than L-PBF Ti6Al4V
after laser texturing. The results suggest that laser texturing can
encourage cell proliferation and osseointegration on the surface of
Ti6Al4V biomedical implants.}
}