Anomalous Strain Rate Sensitivity of Flow Stress in Ni3Ge Single Crystals. The role of Point Defects
- Authors: Solov’eva Y.V.1, Starenchenko V.A.1, Pantyukhova O.D.1, Starenchenko S.V.1, Solov’ev A.N.1, Gettinger M.V.1
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Affiliations:
- Tomsk State University of Architecture and Building
- Issue: Vol 60, No 3 (2017)
- Pages: 494-501
- Section: Condensed-State Physics
- URL: https://ogarev-online.ru/1064-8887/article/view/238083
- DOI: https://doi.org/10.1007/s11182-017-1099-2
- ID: 238083
Cite item
Abstract
The paper considers the strain rate sensitivity of flow stress in Ni3Ge single crystals having high-energy antiphase boundaries detected in experiments for the strain rate variation. The concentration of point defects is estimated by the model of plastic deformation of alloys having L12 structure. These point defects generated by plastic deformation, annihilate both mutually and on dislocations. It is shown that at higher temperatures of deformation, the anomalous strain rate sensitivity of the flow stress observed during the strain rate variation, can be caused by the migration of and interaction between the point defects and dislocations.
About the authors
Yu. V. Solov’eva
Tomsk State University of Architecture and Building
Author for correspondence.
Email: j_sol@mail.ru
Russian Federation, Tomsk
V. A. Starenchenko
Tomsk State University of Architecture and Building
Email: j_sol@mail.ru
Russian Federation, Tomsk
O. D. Pantyukhova
Tomsk State University of Architecture and Building
Email: j_sol@mail.ru
Russian Federation, Tomsk
S. V. Starenchenko
Tomsk State University of Architecture and Building
Email: j_sol@mail.ru
Russian Federation, Tomsk
A. N. Solov’ev
Tomsk State University of Architecture and Building
Email: j_sol@mail.ru
Russian Federation, Tomsk
M. V. Gettinger
Tomsk State University of Architecture and Building
Email: j_sol@mail.ru
Russian Federation, Tomsk
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