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

Research output: Preprint/Documentation/Report › Preprint

Contributors

  • 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)
  • Michał Kubiś - , Warsaw University of Technology (Author)
  • Bartłomiej 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)

Abstract

The hot deformation behavior of a Ti-5Al-5Mo-5V-3Cr alloy obtained by the Blended Elemental Powder Metallurgy approach was investigated. The hot compression tests were carried out to determine the stress-strain relationships at the temperature range of 
800 °C to 1000 °C and strain rate between 0.1 s-1 and 20 s-1. The constitutive model based on the Arrhenius-type constitutive equation was developed as well as the deformation activation energy map. Based on the Dynamic Material Model theory, processing maps at constant strain values were developed using data obtained from hot compression tests. The processing window that indicated the optimum hot deformation parameters was determined at the temperature range of 900 ºC to 1000 ºC and strain rates of 0.1 – 2.0 s-1. The verification of the developed results was successfully confirmed based on the observations of the microstructures of samples after hot compression tests. Then, the hot rolling process was designed using FEM modeling and successfully verified by laboratory tests. The relationship of the deformation parameters, microstructure, and hardness of Ti-5Al-5Mo-5V-3Cr alloy was analyzed.

Details

Original languageEnglish
PublisherElsevier Science B.V.
Publication statusPublished - 3 Mar 2023

Publication series

SeriesSSRN eLibrary / Social Science Research Network
ISSN1556-5068
No renderer: customAssociatesEventsRenderPortal,dk.atira.pure.api.shared.model.researchoutput.WorkingPaper

External IDs

Mendeley deb497ab-e441-3be2-825d-0f5bdf86530c
SSRN 4369569
ORCID /0000-0003-1370-064X/work/142659455

Keywords

Keywords

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