Possible behavior of shear deformation under high-pressure torsion

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Abstract

The mutual influence of the primary and secondary order parameters when torsion is applied under high pressure is studied. Equilibrium and nonequilibrium cases are considered. The first is realized with a continuous increase in torque, and the second when studying the transition from one state to another, described by a traveling wave. The consideration was carried out on the basis of Landau's thermodynamic theory.

About the authors

Yu. D. Zavorotnev

Galkin Donetsk Institute for Physics and Engineering

Author for correspondence.
Email: straumal@issp.ac.ru
Russian Federation, 283048, Donetsk

P. B. Straumal

Baikov Institute of Metallurgy and Materials Science RAS

Email: straumal@issp.ac.ru
Russian Federation, 199334, Moscow

E. Yu. Tomashevskaya

Tugan-Baranovskii Donetsk National University of Economics and Trade

Email: straumal@issp.ac.ru
Russian Federation, 283048, Donetsk

B. B. Straumal

Osip’yan Institute of Solid State Physics RAS

Email: straumal@issp.ac.ru
Russian Federation, 142432, Chernogolovka

References

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Supplementary files

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2. Fig. 1. Dependence of the order parameter on the number of revolutions, annealing temperature: 570 (solid line); 950 ° C (dashed line).

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3. Fig. 2. Dependence of shear deformation on the number of revolutions, annealing temperature: 570 (solid line); 950 ° C (dashed line).

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4. Fig. 3. Dependence of shear deformation on the number of revolutions in the case of θ1 > 0, θ2 > 0, annealing temperature: 570 (solid line); 950 °C (dashed line).

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5. Fig. 4. Dependence of shear deformation on the number of revolutions in the case of θ1 > 0, θ2 < 0, annealing temperature: 570 (solid line); 950 °C (dashed line).

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6. Fig. 5. Dependence of shear deformation on the number of revolutions in the case of θ1 < 0, annealing temperature: 570 (solid line); 950 °C (dashed line).

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7. Fig. 6. Dependence of shear deformation on the number of revolutions in the case of -1 > 0, annealing temperature: 570 (solid line); 950 ° C (dashed line).

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8. Fig. 7. The qualitative shape of the blade at low undisturbed speed.

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9. Fig. 8. Qualitative shape of the strain tensor component at a low undisturbed kink velocity, depending on the left boundary condition: solid line and dotted line – initial conditions are less stationary, dashed – more.

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