1. Structural rejuvenation and relaxation of a metallic glass induced by ion irradiation.
- Author
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Sun, K., Wang, G., Wang, Y.W., Chen, H.C., Yan, L., Pauly, S., Wu, Y.H., Weber, H., Wang, Q., Huang, B., Jia, Y.D., Yi, J., and Zhai, Q.J.
- Subjects
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IRRADIATION , *METALLIC glasses , *RELAXATION for health , *IONS - Abstract
The influence of ion irradiation on structural rejuvenation and relaxation in a Zr-based metallic glass (MG) is investiagted. The MG can be structurally rejuvenated with increasing irradiation dosage from 0 to 3 dpa, which reflects in increased activation volumes of shear-transformation zones. However, structural relaxation dominates at a high irradiation dosage (4 dpa) resulting in higher hardness. The anelastic-relaxation processes in the irradiated MG can be understood in terms of the coordination mechanism of the deformation modes associated with free volume. Ion irradiation appears to be a promising and effective way to modify MGs and to, thus, manipulate plastic flow. Image, graphical abstract [ABSTRACT FROM AUTHOR]
- Published
- 2020
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