Strain localization of commercially pure titanium subjected to ultrasonic impact treatment followed by uniaxial tension

Alexey Panin, Marina Kazachenok, Anna Kozelskaya, Olga Perevalova, Ruslan Balokhonov, Varvara Romanova, Yurii Pochivalov

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

Abstract

It was demonstrated that the ultrasonic impact treatment results in the gradient microstructure of the surface layer of commercially pure titanium composed of nanosized nonequiaxial α-Ti grains, underlying course α-grains with banded substructure and deformation twins, and subjacent layer characterized by the presence of a few twins and extinction contours within the course grains. The effect of ultrasonic impact treatment on the mechanical behavior of titanium specimen under tension was revealed theoretically and experimentally Using optical and atomic force microscopes it was shown that the fine-grained surface layer impede dislocation motion causing the initiation and propagation of shear bands oriented along the direction of maximum shear stresses. The fine structure of shear bands was studied by transmission electron microscopy.

Original languageEnglish
Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Subtitle of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
PublisherAmerican Institute of Physics Inc.
Volume1783
ISBN (Electronic)9780735414457
DOIs
Publication statusPublished - 10 Nov 2016
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation
Duration: 19 Sep 201623 Sep 2016

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
CountryRussian Federation
CityTomsk
Period19.9.1623.9.16

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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