Metals | |
Understanding of the Structural Relaxation of Metallic Glasses within the Framework of the Interstitialcy Theory | |
Vitaly A. Khonik1  K. C. Chan1  | |
[1] Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh 394043, |
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关键词: metallic glasses; structural relaxation; Interstitialcy theory; dumbbell interstitials; shear modulus; heat effects; elastic dipoles; | |
DOI : 10.3390/met5020504 | |
来源: mdpi | |
【 摘 要 】
A review of the new approach to the understanding of the structural relaxation of metallic glasses based on the Interstitialcy theory has been presented. The key hypothesis of this theory proposed by Granato consists of the statement that the thermodynamic properties of crystalline, liquid and glassy states are closely related to the interstitial defects in the dumbbell (split) configuration, called also interstitialcies. It has been argued that structural relaxation of metallic glasses takes place through a change of the concentration of interstitialcy defects frozen-in from the melt upon glass production. Because of a strong interstitialcy-induced shear softening, the defect concentration can be precisely monitored by measurements of the unrelaxed shear modulus. Depending on the relation between the current interstitialcy concentration
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland
【 预 览 】
Files | Size | Format | View |
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RO202003190014985ZK.pdf | 1044KB | download |