A comprehensive study on hot deformation behaviour of the metastable β titanium alloy prepared by blended elemental powder metallurgy approach

Research output: Contribution to journalResearch articleContributedpeer-review


  • Krystian Zygula - , AGH University of Science and Technology (Author)
  • Oleksandr Lypchanskyi - , AGH University of Science and Technology, Freiberg University of Mining and Technology (Author)
  • Aneta Łukaszek-Sołek - , AGH University of Science and Technology (Author)
  • Grzegorz Korpala - , Freiberg University of Mining and Technology (Author)
  • Rafał Stanik - , Institute of Lightweight Engineering and Polymer Technology (Author)
  • Michal Kubis - , Warsaw University of Technology (Author)
  • Bartlomiej Przybyszewski - , Warsaw University of Technology (Author)
  • Marek Wojtaszek - , AGH University of Science and Technology (Author)
  • Maik Gude - , Chair of Lightweight System Engineering and Multi-Material Design (Author)
  • Ulrich Prahl - , Freiberg University of Mining and Technology (Author)


The hot deformation behavior of a Ti–5Al–5Mo–5V–3Cr alloy obtained by the Blended Elemental Powder Metallurgy approach was studied. Hot compression tests were performed to determine the stress–strain relationships at temperatures ranging from 800 °C to 1000 °C and strain rates between 0.1 and 20 s−1. Based on the collected data, a constitutive model was developed using an Arrhenius-type equation, and a deformation activation energy map was generated. Processing maps were created using the Dynamic Material Model theory, and a processing window indicating the optimal hot deformation parameters was determined at temperatures between 900 °C and 1000 °C and strain rates of 0.1–2.0 s−1. Microstructure observations confirmed the results of the DMM analysis, with a homogeneous and recrystallized microstructure found under the processing window parameters. The hot-rolling process was designed using FEM modeling and was successfully verified by laboratory tests. The hot-rolling parameters selected based on previous analysis resulted in a fully compacted material with controlled microstructure. The relationship between the deformation parameters, microstructure, hardness, and tensile properties of the Ti–5Al–5Mo–5V–3Cr alloy after hot rolling was analyzed. Hot rolling using the developed thermomechanical parameters resulted in a significant increase in tensile strength from 757 to 1009 MPa. In general, this study provides a comprehensive characterization of the hot deformation behavior of the Ti–5Al–5Mo–5V–3Cr alloy and valuable insights for optimizing its hot-processing parameters.


Original languageEnglish
Pages (from-to)933-954
Number of pages22
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Issue number3
Early online date30 Jan 2024
Publication statusPublished - Mar 2024

External IDs

ORCID /0000-0003-1370-064X/work/152544502
Mendeley 816cce88-71b2-3fd5-9ee9-4a051b543eaf
Scopus 85183614215
WOS 001152024600001



  • β titanium alloy, powder metallurgy, processing maps, Finite Element Method, Hot rolling, Microstructure evolution