Fracture of severely plastically deformed titanium

Bernhard Völker, Stefan Wurster, Reinhard Pippan, Anton Hohenwarter

Research output: Contribution to journalArticleResearchpeer-review


The mechanical properties with emphasis on the fracture behaviour of ultrafine-grained Ti processed by high pressure torsion were evaluated. Through this process a substantial refinement of the microstructure was induced. As a consequence, a pronounced increase of tensile strength was achieved compared to conventional Ti while the ductility exhibited only a minor reduction after processing. The fracture toughness in terms of the critical stress intensity factor and crack tip opening displacement was evaluated in different crack growth directions and showed a pronounced orientation dependency, which can be related to the typically elongated microstructure induced by this deformation method.
Original languageEnglish
Article number131382
Number of pages4
JournalMaterials letters
Issue number15 February
Early online date30 Nov 2021
Publication statusPublished - 15 Feb 2022

Bibliographical note

Publisher Copyright: © 2021 Elsevier B.V.


  • High pressure torsion
  • Severe plastic deformation
  • Titanium
  • Ultrafine-grained

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