Decreasing activation energy of fast relaxation processes in a metallic glass during aging

2019 ◽  
Vol 99 (14) ◽  
Author(s):  
Martin Luckabauer ◽  
Tomoki Hayashi ◽  
Hidemi Kato ◽  
Tetsu Ichitsubo
Keyword(s):  
Activation Energy ◽  
Metallic Glass ◽  
Relaxation Processes ◽  
Fast Relaxation

Activation energy of relaxation processes in chalcogenide glasses

2013 ◽  
Vol 34 (0) ◽  
pp. 59-63
Author(s):  
А. А. Горват ◽  
В. М. Кришеник ◽  
А. Е. Кріштофорій ◽  
В. В. Мінькович ◽  
О. А. Молнар
Keyword(s):  
Activation Energy ◽  
Chalcogenide Glasses ◽  
Relaxation Processes

Main α relaxation and slow β relaxation processes in a La30Ce30Al15Co25 metallic glass

2019 ◽  
Vol 35 (6) ◽  
pp. 982-986 ◽  
Author(s):  
J.C. Qiao ◽  
Y.H. Chen ◽  
R. Casalini ◽  
J.M. Pelletier ◽  
Y. Yao
Keyword(s):  
Metallic Glass ◽  
Relaxation Processes ◽  
Β Relaxation

Structural Relaxation Process in CuHfTi Amorphous Alloys

2009 ◽  
Vol 283-286 ◽  
pp. 533-538 ◽  
Author(s):  
Kazumasa Yamada ◽  
N. Shinagawa ◽  
M. Sogame ◽  
I.A. Figueroa ◽  
Hywel A. Davies ◽  
...  
Keyword(s):  
Activation Energy ◽  
Relaxation Process ◽  
Structural Relaxation ◽  
Amorphous Alloys ◽  
Melt Spinning ◽  
Amorphous Materials ◽  
Ternary Alloys ◽  
Relaxation Processes ◽  
Scanning Calorimetry ◽  
Structure Relaxation

The aim of this research is to clarify a quantitative evaluation in the structural relaxation processes focusing on the activation energy in Cu based amorphous alloys. The activation energy for structural relaxation process in a metal type amorphous CuHfTi ternary alloys, with cross sections of typically 0.03 mm x 2.0 mm, prepared by chill-block melt spinning has been investigated by Differential Scanning Calorimetry (DSC) with a cyclically heating technique. Activation energies for structural relaxation with a spatial quantity in amorphous materials have been discussed by use of a relaxed ratio function that depends on annealing temperature and time. In the present work, the distributions for the Activation Energy Spectrum (AES) were observed almost 152 kJmol-1 (1.58 eV). Another result has been also established that the “reversible” AES model energy distribution though the cyclically structure relaxation occurs even in amorphous Cu60Hf20Ti20 alloy.

Evolution of structural and dynamic heterogeneities and activation energy distribution of deformation units in metallic glass

2013 ◽  
Vol 102 (10) ◽  
pp. 101903 ◽  
Author(s):  
W. Jiao ◽  
P. Wen ◽  
H. L. Peng ◽  
H. Y. Bai ◽  
B. A. Sun ◽  
...  
Keyword(s):  
Activation Energy ◽  
Metallic Glass ◽  
Energy Distribution

Fast relaxation processes in glasses as revealed by depolarized light scattering

2007 ◽  
Vol 353 (16-17) ◽  
pp. 1491-1500 ◽  
Author(s):  
S.V. Adichtchev ◽  
N.V. Surovtsev ◽  
J. Wiedersich ◽  
A. Brodin ◽  
V.N. Novikov ◽  
...  
Keyword(s):  
Light Scattering ◽  
Relaxation Processes ◽  
Fast Relaxation ◽  
Depolarized Light Scattering

Determination of the activation energy for complicated relaxation processes

2002 ◽  
Vol 44 (8) ◽  
pp. 1604-1610 ◽  
Author(s):  
A. I. Slutsker ◽  
Yu. I. Polikarpov ◽  
K. V. Vasil’eva
Keyword(s):  
Activation Energy ◽  
Relaxation Processes
Sign in / Sign up

Export Citation Format

Share Document