Sanja Petronić
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Sanja Petronić has a total of 10 co-authors. Here are the top co-authors by number of shared publications:
- Biljana Stankov
Institute of Physics Belgrade, University of Belgrade, P.O. Box 57, 11001 Belgrade, Serbia
1 shared publication - Boris Rajčić
Institute of Nuclear Sciences “Vinča”, Belgrade
1 shared publication - Dragan Ranković
VINCA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, Mike Alasa 12-14, 11001 Belgrade, Serbia
1 shared publication - Dragica Đurđević-Milošević
Institute of Chemistry, Technology and Microbiology, Prokupačka 41, 11000 Belgrade, Serbia
1 shared publication - Dubravka Milovanovic
Institute of General and Physical Chemistry, 11158 Belgrade, Serbia
1 shared publication - Jovan Ciganović
Univ Belgrade, Inst Nucl Sci Vinca, Belgrade 11001, Serbia
1 shared publication
Latest Publications
- Open Access
- 19 December 2023
- Published by MDPI AG in Micromachines
- Vol. 15 (1) , 5
Microstructure Formations Resulting from Nanosecond and Picosecond Laser Irradiation of a Ti-Based Alloy under Controlled Atmospheric Conditions and Optimization of the Irradiation Process
This paper presents a study and comparison of surface effects induced by picosecond and nanosecond laser modification of a Ti6Al4V alloy surface under different ambient conditions: air and argon- and nitrogen-rich atmospheres. Detailed surface characterization was performed for all experimental conditions. Damage threshold fluences for picosecond and nanosecond laser irradiation in all three ambient conditions were determined. The observed surface features were a resolidified pool of molten material, craters, hydrodynamic effects and parallel periodic surface structures. Laser-induced periodic surface structures are formed by multi-mode-beam nanosecond laser action and picosecond laser action. Crown-like structures at crater rims are specific features for picosecond Nd:YAG laser action in argon-rich ambient conditions. Elemental analysis of the surfaces indicated nitride compound formation only in the nitrogen-rich ambient conditions. The constituents of the formed plasma were also investigated. Exploring the impact of process control parameters on output responses has been undertaken within the context of laser modification under different environmental conditions. Parametric optimization of the nanosecond laser modification was carried out by implementing an advanced method based on Taguchi’s parametric design and multivariate statistical techniques, and optimal settings are proposed for each atmosphere.
- 19 December 2023
- Published by MDPI AG in Micromachines
- Vol. 15 (1) , 5
Open AccessMicrostructure Formations Resulting from Nanosecond and Picosecond Laser Irradiation of a Ti-Based Alloy under Controlled Atmospheric Conditions and Optimization of the Irradiation Process
This paper presents a study and comparison of surface effects induced by picosecond and nanosecond laser modification of a Ti6Al4V alloy surface under different ambient conditions: air and argon- and nitrogen-rich atmospheres. Detailed surface characterization was performed for all experimental conditions. Damage threshold fluences for picosecond and nanosecond laser irradiation in all three ambient conditions were determined. The observed surface features were a resolidified pool of molten material, craters, hydrodynamic effects and parallel periodic surface structures. Laser-induced periodic surface structures are formed by multi-mode-beam nanosecond laser action and picosecond laser action. Crown-like structures at crater rims are specific features for picosecond Nd:YAG laser action in argon-rich ambient conditions. Elemental analysis of the surfaces indicated nitride compound formation only in the nitrogen-rich ambient conditions. The constituents of the formed plasma were also investigated. Exploring the impact of process control parameters on output responses has been undertaken within the context of laser modification under different environmental conditions. Parametric optimization of the nanosecond laser modification was carried out by implementing an advanced method based on Taguchi’s parametric design and multivariate statistical techniques, and optimal settings are proposed for each atmosphere.