Corrosion behaviour and cell interaction of Ti-6Al-4V alloy prepared by two techniques of 3D printing

Fojt, Jaroslav; Fousová, Michaela; Jablonská, Eva; Joska, Luděk; Hybášek, Vojtěch; Pruchova, Eva; Vojtěch, Dalibor; Ruml, Tomáš

doi:10.1016/j.msec.2018.08.066

Cited by 45 publications

(27 citation statements)

References 32 publications

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“…[ 1–8 ] The corrosion behaviour of three‐dimensional (3D) printed alloys is different in comparison with conventionally created alloys. [ 9–12 ] It is due to the nonequilibrium microstructure, which can cause lower stability of the passive layer. Alloys prepared by selective laser melting (SLM) technology contain a high proportion of the martensitic phase.…”

Section: Introductionmentioning

confidence: 99%

Influence of the surface etching on the corrosion behaviour of a three‐dimensional printed Ti–6Al–4V alloy

Fojt

Kačenka

Jablonská

et al. 2020

Materials & Corrosion

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Recently, there has been an extension of three-dimensional (3D) printing technology of metal materials in the medical field. Additive technology has made it possible to manufacture customized implants. However, 3D printing products often require surface treatment. The possible treatments include acid etching. This study investigated the effect of surface etching on the corrosion resistance of Ti-6Al-4V alloy concerning biological applications. The samples were etched in a mixture of hydrofluoric acid and nitric acid. The corrosion behaviour was described by measuring the time dependence of polarization resistance in a saline solution and surface analysis. The results showed that etching creates a fluoride-rich layer on the surface, which negatively affects the corrosion behaviour of the material for up to 24 hr. Cytocompatibility tests showed that the resulting layer does not affect the biocompatibility of the material.

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Section: Introductionmentioning

confidence: 99%

Influence of the surface etching on the corrosion behaviour of a three‐dimensional printed Ti–6Al–4V alloy

Fojt

Kačenka

Jablonská

et al. 2020

Materials & Corrosion

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“…The substituting materials are preferred to enhance the long-term reliability of implants due to the fundamental properties different from original materials. Besides continuously developing the metal material for AM application, optimizing the structural design and mechanical properties of scaffolds, − numerous studies have been focused on making a tailored surface treatment to promote osseointegration ability of artificial implants. − When the surface of the implants is directly contacted with the host tissue, surface properties might play a key role in the tissue healing process, especially the surface roughness. − From a systematic review of previous studies, it is demonstrated that the osteoblastic cells tend to attach preferentially to the rough surfaces, while the fibroblast cells prefer the smooth surfaces. , However, it should be mentioned that samples prepared for above studies were compact structures, and the research focusing on the cellular reactions of the host tissue to the as-built three-dimensional (3D) printed metal porous structures is still limited. Furthermore, the comprehensive understanding of cell-surface interactions is not only necessary for tissue engineering but also helpful for improving the fabrication process of AM technology in the production of artificial implants.…”

Section: Introductionmentioning

confidence: 56%

Cell Behavior on 3D Ti-6Al-4 V Scaffolds with Different Porosities

Liu

Jin

Zheng

et al. 2019

ACS Appl. Bio Mater.

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Porous titanium (Ti) and its alloys fabricated by additive manufacturing (AM) techniques have attractive potential for dental and bone defect repair fields. Understanding the relationship between cells and the surface of the as-built three-dimensional (3D) scaffold interactions is not only necessary for tissue engineering but also promising for improving the fabrication process in the manufacture of artificial implants by AM technology. In this study, we have aimed to investigate the cell behavior including adhesion and proliferation of fibroblasts (L929) on Ti-6Al-4 V scaffolds fabricated by the electron beam melting method. The porosities of Ti-6Al-4 V scaffolds are 0% (compact), 60%, and 70%, respectively. Different cell behaviors have been observed from all of the specimens after 4 and 8 days of cell incubation. The present result indicates that, besides the surface roughness, the surface topography of specimens should also be taken into consideration to investigate the interaction between implants and cells. Therefore, this study would provide several possibilities for improving the osteointegration functions of the manufactured porous metallic implants in orthopedic and dental applications.

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“…Due to the increased attention to EBM manufactured Ti-G5 as a promising alloy for broad applications, extensive research has been carried out on its microstructural and mechanical properties 1 , 3 , 9 – 15 . Some comparison has been made of selectively laser melted (SLM) alloys with EBM materials 7 , 16 – 18 . In general, EBM Ti-G5 parts exhibited a rougher surface compared to SLM samples 7 , 16 , 17 and comparable mechanical properties to the wrought (WR) alloy 10 .…”

Section: Introductionmentioning

confidence: 99%

Electron beam surface remelting enhanced corrosion resistance of additively manufactured Ti-6Al-4V as a potential in-situ re-finishing technique

Shahsavari

Imani

Setavoraphan

et al. 2022

Sci Rep

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This study explores the effect of surface re-finishing on the corrosion behavior of electron beam manufactured (EBM) Ti-G5 (Ti-6Al-4V), including the novel application of an electron beam surface remelting (EBSR) technique. Specifically, the relationship between material surface roughness and corrosion resistance was examined. Surface roughness was tested in the as-printed (AP), mechanically polished (MP), and EBSR states and compared to wrought (WR) counterparts. Electrochemical measurements were performed in chloride-containing media. It was observed that surface roughness, rather than differences in the underlying microstructure, played a more significant role in the general corrosion resistance in the environment explored here. While both MP and EBSR methods reduced surface roughness and enhanced corrosion resistance, mechanical polishing has many known limitations. The EBSR process explored herein demonstrated positive preliminary results. The surface roughness (Ra) of the EBM-AP material was considerably reduced by 82%. Additionally, the measured corrosion current density in 0.6 M NaCl for the EBSR sample is 0.05 µA cm−2, five times less than the value obtained for the EBM-AP specimen (0.26 µA cm−2).

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Corrosion behaviour and cell interaction of Ti-6Al-4V alloy prepared by two techniques of 3D printing

Cited by 45 publications

References 32 publications

Influence of the surface etching on the corrosion behaviour of a three‐dimensional printed Ti–6Al–4V alloy

Influence of the surface etching on the corrosion behaviour of a three‐dimensional printed Ti–6Al–4V alloy

Cell Behavior on 3D Ti-6Al-4 V Scaffolds with Different Porosities

Electron beam surface remelting enhanced corrosion resistance of additively manufactured Ti-6Al-4V as a potential in-situ re-finishing technique

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