The influence of the density of structural planar defects on the structural-phase transformations in low-stability tetragonal alloys

It is shown that in a low-stability crystalline medium oscillations of a standing wave activate elementary deformation shears in a certain volume, which is related to the standing wave length and determines correlation at the macroscopic scale. It is also established that the correlated deformation shears generate acoustic signals satisfying the coherency condition, whose interference results in a unit acoustic signal of anomalously high amplitude. An analysis of the low-frequency spectrum of acoustic emission from aluminum under conditions of its high-temperature plastic deformation indicates that its discrete pattern is controlled by re-distribution of the vibrational energy of the primary acoustic signal over the resonant vibrations of the resonator standing waves.

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Structural-Phase Transformations of an fcc-Alloy During Thermal Cycling

Chaplygin

Старостенков

Потекаев

et al. 2015

Russ Phys J

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The influence of the density of structural planar defects on the structural-phase transformations in low-stability tetragonal alloys

Cited by 5 publications

References 18 publications

Nonuniform Elastic Deformation of Nanofilms Formed from Nial and Feal Alloys

Nonuniform Elastic Deformation of Nanofilms Formed from Nial and Feal Alloys

Macroscopic Correlation of Deformation Events in Low-Stability State of the Crystal Lattice and Spectral Density of Acoustic Emission Signals

Structural-Phase Transformations of an fcc-Alloy During Thermal Cycling

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