Surface characteristics of Ti6Al4V-EDM implant engineered by PVD coated-etching and Acidithiobacillus ferrooxidans based-biomachining

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Abstract

Presented study aims to characterize the surface implant engineered by PVD (Physical Vapor Deposition) coated-etching and biomachining. The material used is Ti6Al4V manufactured by electrical discharge machining (EDM). Copper (Cu) was used as its electrode material. The results show that acid etching and it followed by PVD coating (ΔRa 51%) were able to decrease the average of surface roughness (Ra) of original EDM to moderately rough category compared to biomachined samples (ΔRa 31%). SEM and EDS observations indicated that Acidithiobacillus ferrooxidans were not capable of removing Cu effectively in its condition as a contaminant on the Ti6Al4V surface. Moreover, significant increasing of the percentage of element weight (wt%) of Oxygen (O) generated by the biomachining can be applied as an alternative to the PVD coating (wt% O 8,9) to enhance the bioactivity of the etched implant. On the other hand, the contact angles generated by the biomachined samples prove that the surface is hydrophobic in nature that prone to increase cell attachment than the hydrophilic surface generated by PVD coated-etching.

Original languageEnglish
Title of host publicationInternational Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2018
EditorsJungkyu Ahn, Jongwan Hu
PublisherAmerican Institute of Physics Inc.
ISBN (Print)9780735417243
DOIs
Publication statusPublished - 28 Aug 2018
Event2018 5th International Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2018 - Incheon, Korea, Republic of
Duration: 18 May 201820 May 2018

Publication series

NameAIP Conference Proceedings
Volume2008
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2018 5th International Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2018
CountryKorea, Republic of
CityIncheon
Period18/05/1820/05/18

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