Institute of Physics of Materials AS CR, v. v. i. > People > Vražina Tomáš

Ing. Tomáš Vražina

Room114
Phone number+420 532 290 347
E-mail[javascript protected email address]
Researcher IDGYJ-7446-2022
ORCID0000-0002-6509-551X
Positionphd student - Structural Integrity of Cyclically Loaded Materials
SupervisorIng. Ivo Šulák, Ph.D.

Scientific interest
  • Analysis of fatigue life and degradation mechanisms of nickel superalloys at high temperatures
  • Characterization of thermally sprayed coatings
  • ML (machine learning) approaches in image analysis

Education
  • From 2022: Doctoral degree - Brno University of Technology, Faculty of Mechanical Engineering, Materials Engineering
  • 2020-2022: Master’s degree - Brno University of Technology, Faculty of Mechanical Engineering, Materials Engineering
  • 2017-2020: Bachelor’s degree - Brno University of Technology, Faculty of Mechanical Engineering, Fundamentals of Mechanical Engineering
Work experiences
  • From 01/2025: Ph.D. Student - Structural Integrity of Cyclically Loaded Materials, Institute of Physics of Materials, CAS
  • 09/2022-12/2024: Ph.D. Student - Low Cycle Fatigue Group, Institute of Physics of Materials, CAS
  • 09/2021-06/2022: Technician - Low Cycle Fatigue Group, Institute of Physics of Materials, CAS
International internships
  • 07/2023-10/2023: CAS Mobility - Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany

2026

Vražina T., Polák J., Poczklán L., Šulák I., Svoboda J.: Comparative study of fatigue crack growth in FCC and ODS BCC materials with emphasis on intergranular propagation. Procedia Struct. Integr. 80 (2026) 244-255

Polák J., Vražina T., Tobiáš J., Poczklán L., Kruml T.: A novel approach to the analysis of the tensile hardening curve. Materials and Design 264 (2026) 115668


2025

Poloprudský J., Vražina T., Nag A., Stolárik G., Chlupová A., Zábranský K., Gejdoš P., Čelko L., Hloch S.: Influence of erosion time on HVOF-sprayed cermet coating: Preliminary study. Lecture Notes in Mechanical Engineering - Advances in Water Jetting II II (2025) 142-155

Bartošák M., Mára V., Vražina T., Španiel M., Šulák I.: Low-cycle fatigue behaviour of boron-added 9% Cr martensitic steel: Effects of temperature, strain rate, and strain amplitude. Int. J. Fatigue 200 (2025) 109110

Vražina T., Brůža J., Chlupová A., Šulák I., Pantělejev L., Kruml T., Man J.: Advanced semantic segmentation of cellular substructure in selectively laser melted 316L stainless steel. Procedia Struct. Integr. 74 (2025) 106-113

Polák J., Poczklán L., Vražina T.: Dislocation structure near the intergranular fracture surface of cyclically strained polycrystalline copper. Fatigue Fract. Eng. Mater. Struct. 48 (2025) 3110-3121


2024

Polák J., Babinský T., Vražina T., Kruml T.: Mechanism of intergranular fatigue crack growth in copper polycrystal. Int. J. Fatigue 182 (2024) 108190

Polák J., Babinský T., Vražina T., Kruml T.: The role of extrusions and intrusions in the initiation and intergranular growth of fatigue cracks. Adv. Eng. Mater. 0 (2024) 2400313

Vražina T., Šulák I., Nowak B., Verma B., Krupp U., Kruml T.: Fatigue lifetime assessment and crack propagation of Ni-based VDM Alloy 699 XA produced by additive manufacturing. Procedia Struct. Integr. 52 (2024) 43-51


2022

Vražina T., Šulák I., Poloprudský J., Zábranský K., Gejdoš P., Hadraba H., Čelko L.: Influence of the deposition parameters on microstructure and properties of HVOFsprayed WC-CRC-Ni coating. METAL 2022 Conf. Proc. - (2022) 487-492