TY  - CONF
AU  - Laketić, Slađana
AU  - Rakin, Marko
AU  - Momčilović, Miloš
AU  - Ciganović, Jovan
AU  - Veljović, Đorđe
AU  - Cvijović, Ivana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6009
AB  - Titanium alloys are finding increasing use as biomaterials due to their low elastic modulus and high damage tolerance. However, the somewhat inadequate alloy surface performance can impede their biomedical application. Surface modification methods have been therefore developed to improve the alloys' surface bioactivity and osseointegration. Laser treatment allows the alloy surface to be modified, providing it with new functionalized surface chemistry and morphology, without compromising the rest of the material properties. Thus, the aim of the study was to examine the laser-induced alterations generated on the Ti-45Nb alloy surface by an ultrashort pulsed laser. The obtained results reveal that laser beam interaction with the target material led to the formation of significant alterations in surface morphology. Surface craters, microcracks, and surface features in the form of periodic and rippled structures and solidified droplets can be observed in the irradiated area. Also, it was found that the higher damage degree along with the material depth and the higher surface roughness were achieved during the irradiation in the argon atmosphere due to the formation of the more pronounced morphological changes on the alloy surface that are induced by higher laser ablation. Furthermore, obtained results showed that alloy surface modification in air, argon, and nitrogen atmosphere additionally caused changes in the surface chemical composition. Namely, after irradiation, the presence of oxygen was observed in the central irradiated area indicating the formation of bioactive Ti-oxide surface film with content that varies with the irradiation parameters variation. Therefore, laser beam irradiation can be singled out as the surface modification method for efficient inducement of the specific surface characteristics that can provide titanium alloys with enhanced osseointegration properties.
PB  - Materials Research Society of Serbia – MRS-Serbia
C3  - TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT
T1  - Laser-induced chemical and mophological changes of the titanium alloy surface under different irradiation parameters
SP  - 92
VL  - XLV
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6009
ER  - 

@conference{
author = "Laketić, Slađana and Rakin, Marko and Momčilović, Miloš and Ciganović, Jovan and Veljović, Đorđe and Cvijović, Ivana",
year = "2022",
abstract = "Titanium alloys are finding increasing use as biomaterials due to their low elastic modulus and high damage tolerance. However, the somewhat inadequate alloy surface performance can impede their biomedical application. Surface modification methods have been therefore developed to improve the alloys' surface bioactivity and osseointegration. Laser treatment allows the alloy surface to be modified, providing it with new functionalized surface chemistry and morphology, without compromising the rest of the material properties. Thus, the aim of the study was to examine the laser-induced alterations generated on the Ti-45Nb alloy surface by an ultrashort pulsed laser. The obtained results reveal that laser beam interaction with the target material led to the formation of significant alterations in surface morphology. Surface craters, microcracks, and surface features in the form of periodic and rippled structures and solidified droplets can be observed in the irradiated area. Also, it was found that the higher damage degree along with the material depth and the higher surface roughness were achieved during the irradiation in the argon atmosphere due to the formation of the more pronounced morphological changes on the alloy surface that are induced by higher laser ablation. Furthermore, obtained results showed that alloy surface modification in air, argon, and nitrogen atmosphere additionally caused changes in the surface chemical composition. Namely, after irradiation, the presence of oxygen was observed in the central irradiated area indicating the formation of bioactive Ti-oxide surface film with content that varies with the irradiation parameters variation. Therefore, laser beam irradiation can be singled out as the surface modification method for efficient inducement of the specific surface characteristics that can provide titanium alloys with enhanced osseointegration properties.",
publisher = "Materials Research Society of Serbia – MRS-Serbia",
journal = "TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT",
title = "Laser-induced chemical and mophological changes of the titanium alloy surface under different irradiation parameters",
pages = "92",
volume = "XLV",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6009"
}

Laketić, S., Rakin, M., Momčilović, M., Ciganović, J., Veljović, Đ.,& Cvijović, I.. (2022). Laser-induced chemical and mophological changes of the titanium alloy surface under different irradiation parameters. in TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT
Materials Research Society of Serbia – MRS-Serbia., XLV, 92.
https://hdl.handle.net/21.15107/rcub_technorep_6009

Laketić S, Rakin M, Momčilović M, Ciganović J, Veljović Đ, Cvijović I. Laser-induced chemical and mophological changes of the titanium alloy surface under different irradiation parameters. in TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT. 2022;XLV:92.
https://hdl.handle.net/21.15107/rcub_technorep_6009 .

Laketić, Slađana, Rakin, Marko, Momčilović, Miloš, Ciganović, Jovan, Veljović, Đorđe, Cvijović, Ivana, "Laser-induced chemical and mophological changes of the titanium alloy surface under different irradiation parameters" in TWENTY THIRD ANNUAL CONFERENCE - YUCOMAT, XLV (2022):92,
https://hdl.handle.net/21.15107/rcub_technorep_6009 .