Kinetics of isothermal structural relaxation in metallic glasses measured by real-time diffraction using synchrotron radiation

2011 ◽  
Vol 91 (2) ◽  
pp. 122-133 ◽  
Author(s):  
K. Hajlaoui ◽  
M.A. Yousfi ◽  
I. Ouelhazi ◽  
K. Georgarakis ◽  
Z. Tourki ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Real Time ◽  
Metallic Glasses ◽  
Structural Relaxation ◽  
Kinetics Of

The kinetics of stress-oriented structural relaxation in metallic glasses

1995 ◽  
Vol 192-193 ◽  
pp. 420-423 ◽  
Author(s):  
V.A. Khonik ◽  
A.T. Kosilov ◽  
V.A. Mikhailov
Keyword(s):  
Metallic Glasses ◽  
Structural Relaxation ◽  
Kinetics Of

On the kinetics of structural relaxation in metallic glasses

1983 ◽  
Vol 31 (3) ◽  
pp. 419-427 ◽  
Author(s):  
A. Van Den Beukel ◽  
S. Radelaar
Keyword(s):  
Metallic Glasses ◽  
Structural Relaxation ◽  
Kinetics Of

Thermodynamic approach for the understanding of the kinetics of heat effects induced by structural relaxation of metallic glasses

2021 ◽  
Author(s):  
Andrey Makarov ◽  
Gennadii V Afonin ◽  
Alexander S Aronin ◽  
Nikolai Kobelev ◽  
Vitaly A Khonik
Keyword(s):  
Shear Modulus ◽  
Metallic Glasses ◽  
Structural Relaxation ◽  
Entropy Change ◽  
Free Energy Barrier ◽  
Novel Approach ◽  
Heat Effects ◽  
Kinetics Of ◽  
Good Agreement ◽  
Non Equilibrium

Abstract We present a novel approach to the understanding of heat effects induced by structural relaxation of metallic glasses. The key idea consists in the application of a general thermodynamic equation for the entropy change due to the evolution of a non-equilibrium part of a complex system. This non-equilibrium part is considered as a defect subsystem of glass and its evolution is governed by local thermoactivated rearrangements with a Gibbs free energy barrier proportional to the high-frequency shear modulus. The only assumption on the nature of the defects is that they should provide a reduction of the shear modulus – a diaelastic effect. This approach allows to determine glass entropy change upon relaxation. On this basis, the kinetics of the heat effects controlled by defect-induced structural relaxation is calculated. A very good agreement between the calculation and specially performed calorimetric and shear modulus measurements on three metallic glasses is found.

A nonlinear analysis of the kinetics of reversible structural relaxation in Co‐Fe based metallic glasses

1988 ◽  
Vol 64 (10) ◽  
pp. 4853-4859 ◽  
Author(s):  
T. Komatsu ◽  
K. Iwasaki ◽  
S. Sato ◽  
K. Matusita
Keyword(s):  
Nonlinear Analysis ◽  
Metallic Glasses ◽  
Structural Relaxation ◽  
Kinetics Of
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