PhD. Topics
Institute of Materials and Machine Mechanics
Topic
Effect of hydrogen on deformation behavior and fracture of high-strength wrought complex concentrated alloys
PhD. program
Manufacturing Technology
Year of admission
2024
Name of the supervisor
Ing. Michaela Štamborská, PhD.
Contact: michaela.stamborska@savba.sk
Receiving school
Slovak University of Agriculture in Nitra
Annotation
The PhD thesis will be focused on the research of the influence of hydrogen on the deformation behavior and fracture of high-strength wrought complex concentrated alloys (CCAs). The PhD student will participate in forming, heat treatment, hydrogenation and characterizing the properties of new CCAs based on CoCrFeNi with additions of Al, Ti, Ta or Nb. Student will investigate the relationship between hydrogen content, microstructure and fracture toughness of the prepared CCAs. The PhD student will participate in the numerical modeling of crack initiation, crack propagation and fracture in CCAs prospective for hydrogen applications, which will be performed by finite element method (software Ansys) and verified using destructive (bending) and non-destructive methods (acoustic emission). The validity and accuracy of numerical calculations will be verified by experimental data from mechanical tests. The candidate is required to have experimental skills, knowledge of applied mechanics, basic knowledge of materials science, knowledge of mechanical testing of materials, knowledge of numerical calculation methods as well as a good knowledge of English language.