Revealing β-relaxation mechanism based on energy distribution of flow units in metallic glass

2016 ◽  
Vol 144 (14) ◽  
pp. 144501 ◽  
Author(s):  
Z. Lu ◽  
B. S. Shang ◽  
Y. T. Sun ◽  
Z. G. Zhu ◽  
P. F. Guan ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Energy Distribution ◽  
Relaxation Mechanism ◽  
Flow Units ◽  
Β Relaxation ◽  
Distribution Of Flow

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

Flow units perspective on sensitivity and reliability of metallic glass properties

2016 ◽  
Vol 69 ◽  
pp. 98-102 ◽  
Author(s):  
A. Gulzar ◽  
Z.G. Zhu ◽  
K. Shahzad ◽  
D.Q. Zhao ◽  
W.H. Wang
Keyword(s):  
Metallic Glass ◽  
Flow Units ◽  
Glass Properties

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

Characterization of flow units in metallic glass through density variation

2013 ◽  
Vol 114 (12) ◽  
pp. 123514 ◽  
Author(s):  
R. J. Xue ◽  
D. P. Wang ◽  
Z. G. Zhu ◽  
D. W. Ding ◽  
B. Zhang ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Density Variation ◽  
Flow Units

Vibration-accelerated activation of flow units in a Pd-based bulk metallic glass

2017 ◽  
Vol 692 ◽  
pp. 62-66 ◽  
Author(s):  
Ning Li ◽  
Ze Liu ◽  
Xinyun Wang ◽  
Meng Zhang
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Flow Units

scholarly journals Influence of Vibrational Loading on Deformation Behavior of Metallic Glass: A Molecular Dynamics Study

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1197 ◽  
Author(s):  
Mao Zhang ◽  
Qiaomin Li ◽  
Jiacheng Zhang ◽  
Xinyun Wang ◽  
Junsong Jin ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Metallic Glass ◽  
High Frequency ◽  
Deformation Behavior ◽  
Elastoplastic Deformation ◽  
Accelerated Aging ◽  
Vibrational Loading ◽  
Average Deformation ◽  
Acoustic Softening ◽  
Β Relaxation

The influence of vibrational loading on the deformation behavior of a Zr50Cu46Al4 metallic glass (MG) was characterized via molecular dynamics approaches. High-frequency (1 GHz) vibrational loading was imposed on the elastoplastic deformation stage during the uniaxial tension of the MG conducted at 50 K. It was found that imposing vibrational loading scarcely reduces the average deformation resistance. On the contrary, it results in a notable residual hardening effect after the vibrational loading is removed, which differs significantly from the previously reported acoustic softening mechanisms. Vibrational loading can increase the fraction of STZed atoms and enhance the shear localization degree, which is beneficial to the shear deformation of MGs. Meanwhile, the influence of vibrational loading on the local microstructure of MG is negligible. A plausible explanation of these phenomena is given by considering the accelerated aging of MG stemming from the β relaxation.

Room temperature activated slow β relaxation and large compressive plasticity in a LaCe-based bulk metallic glass

2020 ◽  
Vol 122 ◽  
pp. 106793 ◽  
Author(s):  
Xiao Cui ◽  
Ji Chao Qiao ◽  
Jin Jing Li ◽  
Ling Zi Meng ◽  
Jing Guo ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Room Temperature ◽  
Β Relaxation

Characterization of flow units in metallic glass through structural relaxations

2013 ◽  
Vol 114 (8) ◽  
pp. 083512 ◽  
Author(s):  
Z. G. Zhu ◽  
P. Wen ◽  
D. P. Wang ◽  
R. J. Xue ◽  
D. Q. Zhao ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Flow Units

scholarly journals Intrinsic correlation between β-relaxation and spatial heterogeneity in a metallic glass

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
F. Zhu ◽  
H. K. Nguyen ◽  
S. X. Song ◽  
Daisman P. B. Aji ◽  
A. Hirata ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Spatial Heterogeneity ◽  
Intrinsic Correlation ◽  
Β Relaxation
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