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

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

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