TY - GEN
T1 - Effect of coloring by anodizing on the corrosion behavior of Ti-6Al-4V alloy
AU - Saraswati, Wardah Citra
AU - Anawati, Anawati
AU - Jujur, I. Nyoman
AU - Gumelar, Muhammad Dikdik
N1 - Funding Information:
This research was supported by Hibah Penelitian Tesis Magister, Kementrian Riset, Teknologi, dan Pendidikan Tinggi Republik Indonesia (Contract no. NKB-1894/UN2.R3.1/HKP.05.00/2019).
Publisher Copyright:
© 2020 Author(s).
PY - 2020/4/21
Y1 - 2020/4/21
N2 - Coloring of an implant material is necessary to identify parts and type of the implant for clinical purposes. The coloring process involved anodizing, which might affect the corrosion resistance of the alloy. The effect of anodizing on the corrosion resistance of Ti-6Al-4V alloy was investigated by potentiodynamic polarization test in Ringer Lactate solution. The variation of color was obtained by varying the anodizing voltage 10, 20, and 30?V in 1 M KOH solution. The resulting color was gold, dark blue, and light blue for anodizing at 10, 20, and 30?V, respectively. Surface observation by optical microscope showed that the pore density of the anodic film increased with applied voltage. The cross-sectional FE-SEM images indicated that the film was thicker with increasing applied voltage. The film thickness was 198.6, 435.5, and 1199?nm for the film formed at 10, 20, and 30?V, respectively. The variation of interference color of the film was attributed to the alteration in pore density and film thickness. The presence of the anodic film enhanced the corrosion resistance of the alloy about an order of magnitude. The corrosion current density of the alloy decreased consecutively from 14.27 to 1.93, 0.73, and 0.43?μA/cm2 after anodized at 10, 20, 30?V, respectively. The film served as a barrier layer between the metal and the solution. Therefore, the corrosion resistance increased with film thickness. Anodizing of Ti-6Al-4V provides the dual benefit of surface coloring and corrosion protection.
AB - Coloring of an implant material is necessary to identify parts and type of the implant for clinical purposes. The coloring process involved anodizing, which might affect the corrosion resistance of the alloy. The effect of anodizing on the corrosion resistance of Ti-6Al-4V alloy was investigated by potentiodynamic polarization test in Ringer Lactate solution. The variation of color was obtained by varying the anodizing voltage 10, 20, and 30?V in 1 M KOH solution. The resulting color was gold, dark blue, and light blue for anodizing at 10, 20, and 30?V, respectively. Surface observation by optical microscope showed that the pore density of the anodic film increased with applied voltage. The cross-sectional FE-SEM images indicated that the film was thicker with increasing applied voltage. The film thickness was 198.6, 435.5, and 1199?nm for the film formed at 10, 20, and 30?V, respectively. The variation of interference color of the film was attributed to the alteration in pore density and film thickness. The presence of the anodic film enhanced the corrosion resistance of the alloy about an order of magnitude. The corrosion current density of the alloy decreased consecutively from 14.27 to 1.93, 0.73, and 0.43?μA/cm2 after anodized at 10, 20, 30?V, respectively. The film served as a barrier layer between the metal and the solution. Therefore, the corrosion resistance increased with film thickness. Anodizing of Ti-6Al-4V provides the dual benefit of surface coloring and corrosion protection.
UR - http://www.scopus.com/inward/record.url?scp=85113451640&partnerID=8YFLogxK
U2 - 10.1063/5.0001483
DO - 10.1063/5.0001483
M3 - Conference contribution
AN - SCOPUS:85113451640
T3 - AIP Conference Proceedings
BT - Proceedings of the 3rd International Seminar on Metallurgy and Materials, ISMM 2019
A2 - Darsono, Nono
A2 - Thaha, Yudi Nugraha
A2 - Ridhova, Aga
A2 - Rhamdani, Ahmad
A2 - Utomo, Muhammad Satrio
A2 - Ridlo, Faried Miftahur
A2 - Prasetyo, Mukhlis Agung
PB - American Institute of Physics Inc.
T2 - 3rd International Seminar on Metallurgy and Materials: Exploring New Innovation in Metallurgy and Materials, ISMM 2019
Y2 - 23 October 2019 through 24 October 2019
ER -