Chinese Academy of Sciences (CAS) - Institute of Physics; Chinese Academy of Sciences (CAS); Chinese Academy of Sciences (CAS) - Songshan Lake Materials Laboratory
Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience
Abstract
The method of stress-relaxation is applied to study the structural and dynamic heterogeneities of Ni-P nanoglass (NG) prepared by pulse electro-deposition. We provide direct evidence that the Ni-P NG has more flow units with better plasticity than conventional Ni-P metallic glass (MG) prepared by rapid quenching. Moreover, an anomalous peak is observed in the activation energy spectra of NG at 435 K, which may relate to a hidden polyamorphous phase transition in Ni-P NG. Our study provides insights on the understanding of the discrepancy in structural heterogeneity and dynamic and thermodynamic properties between the NG and MG.
Pei, Chaoqun and Zhao, Rui and Fang, Yini and Wu, Shangshu and Cui, Zhaotao and Sun, Baoan and Lan, Si and Luo, Peng and Wang, WeiHua and Feng, Tao, The Structural and Dynamic Heterogeneities of Ni-P Nanoglass Characterized by Stress-Relaxation. Available at SSRN: https://ssrn.com/abstract=3447510 or http://dx.doi.org/10.2139/ssrn.3447510
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