TY  - JOUR
AU  - Milovanović, Dubravka S.
AU  - Petrović, Suzana
AU  - Shulepov, Mikhail A.
AU  - Tarasenko, Victor F.
AU  - Radak, Bojan
AU  - Miljanić, Šćepan S.
AU  - Trtica, Milan
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5662
AB  - The main effects of the interaction of UV emitting KrCl (at 222 nm) and XeCl (at 308 nm) excimer lasers with titanium alloy Ti6Al4V are presented. Single-pulse and multi-pulse irradiations were used, with varying laser beam fluences. The resulting interactions with the surface show thermal character, and produce: (i) damages in the form of craters at higher pulse counts and fluences of 7 J cm(-2) and 7.2 J cm(-2), which are far above the damage threshold; (ii) melt pools with visible wave-like structures at periphery; (iii) resolidified droplets and cracks at periphery (at higher pulse count), (iv) increasing content of oxygen, with a domination of TiO2. (C) 2013 Elsevier Ltd. All rights reserved.
T2  - Optics and Laser Technology
T1  - Titanium alloy surface modification by excimer laser irradiation
VL  - 54
SP  - 419
EP  - 427
DO  - 10.1016/j.optlastec.2013.06.025
ER  - 

@article{
author = "Milovanović, Dubravka S. and Petrović, Suzana and Shulepov, Mikhail A. and Tarasenko, Victor F. and Radak, Bojan and Miljanić, Šćepan S. and Trtica, Milan",
year = "2013",
abstract = "The main effects of the interaction of UV emitting KrCl (at 222 nm) and XeCl (at 308 nm) excimer lasers with titanium alloy Ti6Al4V are presented. Single-pulse and multi-pulse irradiations were used, with varying laser beam fluences. The resulting interactions with the surface show thermal character, and produce: (i) damages in the form of craters at higher pulse counts and fluences of 7 J cm(-2) and 7.2 J cm(-2), which are far above the damage threshold; (ii) melt pools with visible wave-like structures at periphery; (iii) resolidified droplets and cracks at periphery (at higher pulse count), (iv) increasing content of oxygen, with a domination of TiO2. (C) 2013 Elsevier Ltd. All rights reserved.",
journal = "Optics and Laser Technology",
title = "Titanium alloy surface modification by excimer laser irradiation",
volume = "54",
pages = "419-427",
doi = "10.1016/j.optlastec.2013.06.025"
}

Milovanović, D. S., Petrović, S., Shulepov, M. A., Tarasenko, V. F., Radak, B., Miljanić, Š. S.,& Trtica, M.. (2013). Titanium alloy surface modification by excimer laser irradiation. in Optics and Laser Technology, 54, 419-427.
https://doi.org/10.1016/j.optlastec.2013.06.025

Milovanović DS, Petrović S, Shulepov MA, Tarasenko VF, Radak B, Miljanić ŠS, Trtica M. Titanium alloy surface modification by excimer laser irradiation. in Optics and Laser Technology. 2013;54:419-427.
doi:10.1016/j.optlastec.2013.06.025 .

Milovanović, Dubravka S., Petrović, Suzana, Shulepov, Mikhail A., Tarasenko, Victor F., Radak, Bojan, Miljanić, Šćepan S., Trtica, Milan, "Titanium alloy surface modification by excimer laser irradiation" in Optics and Laser Technology, 54 (2013):419-427,
https://doi.org/10.1016/j.optlastec.2013.06.025 . .

TY  - JOUR
AU  - Trtica, Milan
AU  - Tarasenko, Victor F.
AU  - Gaković, Biljana M.
AU  - Panchenko, A. N.
AU  - Radak, Bojan
AU  - Stašić, Jelena
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6812
AB  - Morphology effects induced during interaction of mu s- (Transversely Excited Atmospheric (TEA) CO(2) laser) or ns- (HF laser) pulses with titanium nitride (TiN) coating, deposited on austenitic stainless steel AISI 316, were studied. Experiments were carried out in regime of focused laser beam in air at atmospheric pressure. The used laser fluences were found to be sufficient for inducing intensive surface modifications of the target. The energy absorbed from the CO(2) as well as HF laser beam is mainly converted into thermal energy, causing different effects like ablation, appearance of hydrodynamic features, etc. Morphology characteristics obtained during ns-pulses irradiation (HF laser) were different to those initiated by mu s-pulses (TEA CO(2) laser). The changes on the target surface in form of massive resolidifed droplets and crown-like structures were observed only for ns- (HF laser) pulses. It was found that these effects are a consequence of higher temperature and better coupling of the HF laser radiation with the target. Recent investigations of ps-Nd:YAG laser interaction with the same TiN coating showed that morphology picture is quite different including the reduction of thermal effect.
T2  - Russian Journal of Physical Chemistry A
T1  - Micro- and nanosecond laser TiN coating/steel modification: Morphology studies
VL  - 83
IS  - 9
SP  - 1577
EP  - 1581
DO  - 10.1134/S0036024409090295
ER  - 

@article{
author = "Trtica, Milan and Tarasenko, Victor F. and Gaković, Biljana M. and Panchenko, A. N. and Radak, Bojan and Stašić, Jelena",
year = "2009",
abstract = "Morphology effects induced during interaction of mu s- (Transversely Excited Atmospheric (TEA) CO(2) laser) or ns- (HF laser) pulses with titanium nitride (TiN) coating, deposited on austenitic stainless steel AISI 316, were studied. Experiments were carried out in regime of focused laser beam in air at atmospheric pressure. The used laser fluences were found to be sufficient for inducing intensive surface modifications of the target. The energy absorbed from the CO(2) as well as HF laser beam is mainly converted into thermal energy, causing different effects like ablation, appearance of hydrodynamic features, etc. Morphology characteristics obtained during ns-pulses irradiation (HF laser) were different to those initiated by mu s-pulses (TEA CO(2) laser). The changes on the target surface in form of massive resolidifed droplets and crown-like structures were observed only for ns- (HF laser) pulses. It was found that these effects are a consequence of higher temperature and better coupling of the HF laser radiation with the target. Recent investigations of ps-Nd:YAG laser interaction with the same TiN coating showed that morphology picture is quite different including the reduction of thermal effect.",
journal = "Russian Journal of Physical Chemistry A",
title = "Micro- and nanosecond laser TiN coating/steel modification: Morphology studies",
volume = "83",
number = "9",
pages = "1577-1581",
doi = "10.1134/S0036024409090295"
}

Trtica, M., Tarasenko, V. F., Gaković, B. M., Panchenko, A. N., Radak, B.,& Stašić, J.. (2009). Micro- and nanosecond laser TiN coating/steel modification: Morphology studies. in Russian Journal of Physical Chemistry A, 83(9), 1577-1581.
https://doi.org/10.1134/S0036024409090295

Trtica M, Tarasenko VF, Gaković BM, Panchenko AN, Radak B, Stašić J. Micro- and nanosecond laser TiN coating/steel modification: Morphology studies. in Russian Journal of Physical Chemistry A. 2009;83(9):1577-1581.
doi:10.1134/S0036024409090295 .

Trtica, Milan, Tarasenko, Victor F., Gaković, Biljana M., Panchenko, A. N., Radak, Bojan, Stašić, Jelena, "Micro- and nanosecond laser TiN coating/steel modification: Morphology studies" in Russian Journal of Physical Chemistry A, 83, no. 9 (2009):1577-1581,
https://doi.org/10.1134/S0036024409090295 . .

TY  - CONF
AU  - Trtica, Milan
AU  - Tarasenko, Victor F.
AU  - Gaković, Biljana M.
AU  - Panchenko, A.
AU  - Radak, Bojan
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9387
AB  - Interactions of a pulsed Transversely Excited Atmospheric (TEA) CO2 and chemical HF laser with polycrystalline titanium nitride (TiN) coating deposited on high quality steel AISI 316, were studied. It was shown that both lasers, at energy densities of 43 J/cm2 and 38.6 J/cm2, induce morphological changes on the target. The HF laser produces more pronounced damage than the TEA CO2 laser. The energy absorbed from either of these lasers is mainly converted into thermal energy.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
T1  - Surface modifications of TiN coating by pulsed ir lasers: tea CO2 and HF laser
VL  - 2
SP  - 506
EP  - 508
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9387
ER  - 

@conference{
author = "Trtica, Milan and Tarasenko, Victor F. and Gaković, Biljana M. and Panchenko, A. and Radak, Bojan",
year = "2008",
abstract = "Interactions of a pulsed Transversely Excited Atmospheric (TEA) CO2 and chemical HF laser with polycrystalline titanium nitride (TiN) coating deposited on high quality steel AISI 316, were studied. It was shown that both lasers, at energy densities of 43 J/cm2 and 38.6 J/cm2, induce morphological changes on the target. The HF laser produces more pronounced damage than the TEA CO2 laser. The energy absorbed from either of these lasers is mainly converted into thermal energy.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry",
title = "Surface modifications of TiN coating by pulsed ir lasers: tea CO2 and HF laser",
volume = "2",
pages = "506-508",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9387"
}

Trtica, M., Tarasenko, V. F., Gaković, B. M., Panchenko, A.,& Radak, B.. (2008). Surface modifications of TiN coating by pulsed ir lasers: tea CO2 and HF laser. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 2, 506-508.
https://hdl.handle.net/21.15107/rcub_vinar_9387

Trtica M, Tarasenko VF, Gaković BM, Panchenko A, Radak B. Surface modifications of TiN coating by pulsed ir lasers: tea CO2 and HF laser. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry. 2008;2:506-508.
https://hdl.handle.net/21.15107/rcub_vinar_9387 .

Trtica, Milan, Tarasenko, Victor F., Gaković, Biljana M., Panchenko, A., Radak, Bojan, "Surface modifications of TiN coating by pulsed ir lasers: tea CO2 and HF laser" in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry, 2 (2008):506-508,
https://hdl.handle.net/21.15107/rcub_vinar_9387 .

TY  - JOUR
AU  - Trtica, Milan
AU  - Tarasenko, Victor F.
AU  - Gaković, Biljana M.
AU  - Fedenev, AV
AU  - Petkovska, Ljubica T.
AU  - Radak, Bojan
AU  - Lipatov, EI
AU  - Shulepov, MA
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2934
AB  - Interactions of a transversely excited atmospheric (TEA) CO2 laser and an excimer XeCl laser, pulse durations similar to 2 mu s (initial spike FWHM similar to 100 ns) and similar to 20 ns (FWHM), respectively, with polycrystalline titanium nitride (TiN) coating deposited on high quality steel AISI 316, were studied. Titanium nitride was surface modified by the laser beams, with an energy density of 20.0 J/cm(2) (TEA CO2 laser) and 2.4 J/cm(2) (XeCl laser), respectively. The energy absorbed from the CO2 laser beam is partially converted to thermal energy, which generates a series of effects such as melting, vaporization of the molten material, shock waves, etc. The energy from the excimer XeCl laser primarily leads to fast and intense target evaporation. The calculated maximum temperatures on the target surface were 3770 and 6300 K for the TEA CO2 and XcCl lasers, respectively. It is assumed that the TEA CO2 laser affects the target deeper, for a longer time than the XeCl laser. The effects of the XeCl laser are confined to a localized area, near target surface, within a short time period. Morphological modifications of the titanium nitride surface can be summarized as follows: (i) both lasers produced ablation of the TiN coating in the central zone of the irradiated area and creation of grainy structure with near homogeneous distribution; (ii) a hydrodynamic feature, like resolidified droplets of the material, appeared in the surrounding peripheral zone; (iii) the process of irradiation, in both cases, was accompanied by appearance of plasma in front of the target. Target color modifications upon laser irradiation indicate possible chemical changes, possibly oxidation. (c) 2005 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Surface modifications of TiN coating by pulsed TEA CO2 and XeCl lasers
VL  - 252
IS  - 2
SP  - 474
EP  - 482
DO  - 10.1016/j.apsusc.2005.01.029
ER  - 

@article{
author = "Trtica, Milan and Tarasenko, Victor F. and Gaković, Biljana M. and Fedenev, AV and Petkovska, Ljubica T. and Radak, Bojan and Lipatov, EI and Shulepov, MA",
year = "2005",
abstract = "Interactions of a transversely excited atmospheric (TEA) CO2 laser and an excimer XeCl laser, pulse durations similar to 2 mu s (initial spike FWHM similar to 100 ns) and similar to 20 ns (FWHM), respectively, with polycrystalline titanium nitride (TiN) coating deposited on high quality steel AISI 316, were studied. Titanium nitride was surface modified by the laser beams, with an energy density of 20.0 J/cm(2) (TEA CO2 laser) and 2.4 J/cm(2) (XeCl laser), respectively. The energy absorbed from the CO2 laser beam is partially converted to thermal energy, which generates a series of effects such as melting, vaporization of the molten material, shock waves, etc. The energy from the excimer XeCl laser primarily leads to fast and intense target evaporation. The calculated maximum temperatures on the target surface were 3770 and 6300 K for the TEA CO2 and XcCl lasers, respectively. It is assumed that the TEA CO2 laser affects the target deeper, for a longer time than the XeCl laser. The effects of the XeCl laser are confined to a localized area, near target surface, within a short time period. Morphological modifications of the titanium nitride surface can be summarized as follows: (i) both lasers produced ablation of the TiN coating in the central zone of the irradiated area and creation of grainy structure with near homogeneous distribution; (ii) a hydrodynamic feature, like resolidified droplets of the material, appeared in the surrounding peripheral zone; (iii) the process of irradiation, in both cases, was accompanied by appearance of plasma in front of the target. Target color modifications upon laser irradiation indicate possible chemical changes, possibly oxidation. (c) 2005 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Surface modifications of TiN coating by pulsed TEA CO2 and XeCl lasers",
volume = "252",
number = "2",
pages = "474-482",
doi = "10.1016/j.apsusc.2005.01.029"
}

Trtica, M., Tarasenko, V. F., Gaković, B. M., Fedenev, A., Petkovska, L. T., Radak, B., Lipatov, E.,& Shulepov, M.. (2005). Surface modifications of TiN coating by pulsed TEA CO2 and XeCl lasers. in Applied Surface Science, 252(2), 474-482.
https://doi.org/10.1016/j.apsusc.2005.01.029

Trtica M, Tarasenko VF, Gaković BM, Fedenev A, Petkovska LT, Radak B, Lipatov E, Shulepov M. Surface modifications of TiN coating by pulsed TEA CO2 and XeCl lasers. in Applied Surface Science. 2005;252(2):474-482.
doi:10.1016/j.apsusc.2005.01.029 .

Trtica, Milan, Tarasenko, Victor F., Gaković, Biljana M., Fedenev, AV, Petkovska, Ljubica T., Radak, Bojan, Lipatov, EI, Shulepov, MA, "Surface modifications of TiN coating by pulsed TEA CO2 and XeCl lasers" in Applied Surface Science, 252, no. 2 (2005):474-482,
https://doi.org/10.1016/j.apsusc.2005.01.029 . .

TY  - JOUR
AU  - Trtica, Milan
AU  - Gaković, Biljana M.
AU  - Petkovska, Ljubica T.
AU  - Tarasenko, Victor F.
AU  - Fedenev, AV
AU  - Lipatov, EI
AU  - Shulepov, MA
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2752
AB  - Interaction of a transversely excited atmospheric (TEA) CO2 and excimer-KrCl laser, pulse duration similar to2 mus (FWHM of initial spike similar to100 ns) and similar to12 ns (FWHM), respectively, with polycrystalline titanium nitride (TiN) coating deposited on high quality steels, was studied. The results have shown that the titanium nitride was surface modified by the laser beam, with an energy density (ED) of 43.0 J/cm(2) (TEA CO2 laser system) and 3.3 J/cm(2) (KrCl system), respectively. The energy absorbed from the CO2 laser beam is partially converted to thermal energy, which generates a series of effects such as melting, vaporization of the molten material, shock waves, etc. The energy from the excimer-KrCl laser primarily leads to a fast and intense target evaporation. Calculated maximal temperatures, on the target surface, were 3940 and 8000 K for the TEA CO2 and the KrCl lasers, respectively. It is assumed that TEA CO2 laser,affects, the target deeper, during a longer time than the KrCl laser. The effects of the KrCl laser are confined to a localized area, near target surface, in the course of short time. The following morphological changes of titanium nitride surface were observed: (i) both types of laser caused ablation of the TiN coating in the central zone of the irradiated area, (ii) appearance of a hydrodynamic feature like resolidified droplets of material in the surrounding outer zone (cracking) in the case of the TEA CO2 laser, and (iii) appearance of wave-like microstructures (consisting of periodic parallel fringes with a period of about 20 microns) in the case of KrCl laser. Formation of the wave-like microstructures is discussed in the context of laser-induced periodic surface structure (LIPSS) effects and diffraction phenomena. The process of the CO2 and KrCl laser interaction with titanium nitride were typically accompanied by plasma formation. Plasma appeared above the target after about 40 and 1 laser pulse, respectively. (C) 2003 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Surface modifications of TiN coating by the pulsed TEA CO2 and KrCl laser
VL  - 225
IS  - 1-4
SP  - 362
EP  - 371
DO  - 10.1016/j.apsusc.2003.10.048
ER  - 

@article{
author = "Trtica, Milan and Gaković, Biljana M. and Petkovska, Ljubica T. and Tarasenko, Victor F. and Fedenev, AV and Lipatov, EI and Shulepov, MA",
year = "2004",
abstract = "Interaction of a transversely excited atmospheric (TEA) CO2 and excimer-KrCl laser, pulse duration similar to2 mus (FWHM of initial spike similar to100 ns) and similar to12 ns (FWHM), respectively, with polycrystalline titanium nitride (TiN) coating deposited on high quality steels, was studied. The results have shown that the titanium nitride was surface modified by the laser beam, with an energy density (ED) of 43.0 J/cm(2) (TEA CO2 laser system) and 3.3 J/cm(2) (KrCl system), respectively. The energy absorbed from the CO2 laser beam is partially converted to thermal energy, which generates a series of effects such as melting, vaporization of the molten material, shock waves, etc. The energy from the excimer-KrCl laser primarily leads to a fast and intense target evaporation. Calculated maximal temperatures, on the target surface, were 3940 and 8000 K for the TEA CO2 and the KrCl lasers, respectively. It is assumed that TEA CO2 laser,affects, the target deeper, during a longer time than the KrCl laser. The effects of the KrCl laser are confined to a localized area, near target surface, in the course of short time. The following morphological changes of titanium nitride surface were observed: (i) both types of laser caused ablation of the TiN coating in the central zone of the irradiated area, (ii) appearance of a hydrodynamic feature like resolidified droplets of material in the surrounding outer zone (cracking) in the case of the TEA CO2 laser, and (iii) appearance of wave-like microstructures (consisting of periodic parallel fringes with a period of about 20 microns) in the case of KrCl laser. Formation of the wave-like microstructures is discussed in the context of laser-induced periodic surface structure (LIPSS) effects and diffraction phenomena. The process of the CO2 and KrCl laser interaction with titanium nitride were typically accompanied by plasma formation. Plasma appeared above the target after about 40 and 1 laser pulse, respectively. (C) 2003 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Surface modifications of TiN coating by the pulsed TEA CO2 and KrCl laser",
volume = "225",
number = "1-4",
pages = "362-371",
doi = "10.1016/j.apsusc.2003.10.048"
}

Trtica, M., Gaković, B. M., Petkovska, L. T., Tarasenko, V. F., Fedenev, A., Lipatov, E.,& Shulepov, M.. (2004). Surface modifications of TiN coating by the pulsed TEA CO2 and KrCl laser. in Applied Surface Science, 225(1-4), 362-371.
https://doi.org/10.1016/j.apsusc.2003.10.048

Trtica M, Gaković BM, Petkovska LT, Tarasenko VF, Fedenev A, Lipatov E, Shulepov M. Surface modifications of TiN coating by the pulsed TEA CO2 and KrCl laser. in Applied Surface Science. 2004;225(1-4):362-371.
doi:10.1016/j.apsusc.2003.10.048 .

Trtica, Milan, Gaković, Biljana M., Petkovska, Ljubica T., Tarasenko, Victor F., Fedenev, AV, Lipatov, EI, Shulepov, MA, "Surface modifications of TiN coating by the pulsed TEA CO2 and KrCl laser" in Applied Surface Science, 225, no. 1-4 (2004):362-371,
https://doi.org/10.1016/j.apsusc.2003.10.048 . .