Cavity nucleation in single-component homogeneous amorphous solids under negative pressure
arXiv:2211.06965 · doi:10.1088/1361-648X/ac8462
Abstract
Understanding the cavity formation and cavity growth mechanisms in solids has fundamental and applied importance for the correct determination of their exploitation capabilities and mechanical characteristics. In this work, we present the molecular dynamics simulation results for the process of homogeneous formation of nanosized cavities in a single-component amorphous metallic alloy. To identify cavities of various shapes and sizes, an original method has been developed, which is based on filling cavities by virtual particles (balls) of the same diameter. By means of the mean first-passage time analysis, it was shown that the cavity formation in an amorphous metallic melt is the activation-type process. This process can be described in terms of the classical nucleation theory, which is usually applied to the case of first order phase transitions. Activation energy, critical size and nucleation rate of cavities are calculated, the values of which are comparable with those for the case of crystal nucleation in amorphous systems.
arXiv comment17 pages, 5 figures
References in corpus (10)
- Crystal Nucleation in Liquids: Open Questions and Future Challenges in Molecular Dynamics Simulations
- Shortcomings of the Bond Orientational Order Parameters for the Analysis of Disordered Particulate Matter
- Extension of Classical Nucleation Theory for Uniformly Sheared Systems
- Steady-State Homogeneous Nucleation and Growth of Water Droplets: Extended Numerical Treatment
- Crystal nucleation and cluster-growth kinetics in a model glass under shear
- A Method for Analyzing the Non-Stationary Nucleation and Overall Transition Kinetics. A Case of Water
- Kinetics of the Crystalline Nuclei Growth in Glassy Systems
- Crystallization of Lennard-Jones nanodroplets: from near melting to deeply supercooled
- Change in the Crystallization Features of Supercooled Liquid Metal with an Increase in the Supercooling Level
- Structure and Morphology of Crystalline Nuclei arising in a Crystallizing Liquid Metallic Film