The effect of microstructure and phase composition of Ti-6Al-4V titanium alloy hardened surface layer on its mechanical properties

Elena Sinyakova, Alexey Panin, Olga Perevalova, Mark Kalashnikov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The microstructure, phase composition of Ti-6Al-4V alloy specimens subjected to ultrasonic impact treatment and scanning electron beam treatment as well as their deformation behavior under uniaxial tension were investigated. After the ultrasonic impact treatment nanocrystalline α-grains in the surface layer was found. Scanning electron beam treatment leads to formation of acicular α′-phase in the primary β-phase grains. Dislocation glide, twinning and shear banding mechanisms were revealed in scanning electron beam treated Ti-6Al-4V titanium alloy specimens under tension. Formation of nanocrystalline α-phase in the surface layer was due to the strong localization of plastic deformation from the beginning of loading.

Original languageEnglish
Title of host publicationProceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
EditorsVasily M. Fomin, Victor E. Panin, Sergey G. Psakhie
PublisherAmerican Institute of Physics Inc.
Volume2051
ISBN (Electronic)9780735417779
DOIs
Publication statusPublished - 12 Dec 2018
EventInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018 - Tomsk, Russian Federation
Duration: 1 Oct 20185 Oct 2018

Conference

ConferenceInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018
CountryRussian Federation
CityTomsk
Period1.10.185.10.18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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