Abstract
As the reverse process of relaxation, rejuvenation is the structural excitation process that can bring metallic glasses (MGs) to a higher energy state and usually increases their free volume. Here, using a dilution procedure conducted by randomly removing atoms from the modeled glass matrix, the degree of rejuvenation can be systematically controlled and the maximum rejuvenation threshold of MGs is identified. The structural relaxation is activated during the rejuvenation process and the dynamic balance between free volume creation and annihilation defines the rejuvenation ability of MGs. The highest degree of rejuvenation correlates to the flow strain of the materials and the structure is similar to that found in shear bands.
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 114575 |
| Seitenumfang | 5 |
| Fachzeitschrift | Scripta Materialia |
| Jahrgang | 212.2022 |
| Ausgabenummer | 15 April |
| Frühes Online-Datum | 3 Feb. 2022 |
| DOIs | |
| Publikationsstatus | Veröffentlicht - 15 Apr. 2022 |
Bibliographische Notiz
Funding Information:The authors acknowledge financial support by the China Scholarship Council (CSC, 201806220096 ), the Deutsche Forschungsgemeinschaft (DFG) (Grant no. SO 1518/1-1 ), the European Research Council under the ERC Advanced Grant INTELHYB (Grant no. ERC-2013-ADG-340025 ) and the National Natural Science Foundation of China ( 51871132 ). The authors are grateful for the computing time granted by the Lichtenberg high performance computer of the Technische Universität Darmstadt.
Funding Information:
The authors acknowledge financial support by the China Scholarship Council (CSC, 201806220096), the Deutsche Forschungsgemeinschaft (DFG) (Grant no. SO 1518/1-1), the European Research Council under the ERC Advanced Grant INTELHYB (Grant no. ERC-2013-ADG-340025) and the National Natural Science Foundation of China (51871132). The authors are grateful for the computing time granted by the Lichtenberg high performance computer of the Technische Universit?t Darmstadt.
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