Inelasticity and Nanostructured Dislocation Deformation of Aluminum–Silicon Alloy with a Supermodified Eutectic Structure
- Authors: Nikanorov S.P.1, Kardashev B.K.1, Osipov V.N.1, Kaminskii V.V.1, Sharenkova N.V.1
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Affiliations:
- Ioffe Institute
- Issue: Vol 64, No 8 (2019)
- Pages: 1151-1154
- Section: Solid State
- URL: https://journals.rcsi.science/1063-7842/article/view/203949
- DOI: https://doi.org/10.1134/S1063784219080164
- ID: 203949
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Abstract
Young’s modulus and the logarithmic decrement of oscillations at a frequency of ~100 kHz as well as the subgrain size and residual stresses in the strontium modified alloy of aluminum with 15 wt % silicon have been studied. The alloy was obtained with a solidification rate of 1 mm/s at the shifted eutectic point. The dependence of inelastic dislocation deformation on the applied oscillating stress has been obtained and analyzed. The effect of strontium modification on the microstrain diagram can be accounted for by transformation of the lamellar fiber structure of eutectic silicon into a superfine fiber structure.
About the authors
S. P. Nikanorov
Ioffe Institute
Author for correspondence.
Email: s.nikanorov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
B. K. Kardashev
Ioffe Institute
Email: s.nikanorov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
V. N. Osipov
Ioffe Institute
Email: s.nikanorov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
V. V. Kaminskii
Ioffe Institute
Email: s.nikanorov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
N. V. Sharenkova
Ioffe Institute
Email: s.nikanorov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021