A variety of probing methods (described below, Table 1) have been developed to determine the mechanical properties such as elasticity, viscosity, plasticity, glass-like behavior or, relaxation behavior.
She hopes to contribute to the fundamental understanding of the atomic mechanisms of plasticity in glasses and to understand the unexplored connection between the stress state of glasses under loading and their resulting plastic deformation.
The plasticity of glasses is characterized not only by shear flow but also by a permanent densification process.
Minor elements, when added to binary amorphous alloys in small percentages, can often lead to significant improvements in both the plasticity and glass-forming ability (GFA) of the alloys.
The effects of internal friction (IF) on Zr65Cu35 metallic glass plasticity are investigated through molecular dynamics simulations.
Results show that the Voronoi polyhedron 〈0, 3, 6, 3〉 increases as IF increases, thereby effectively inhibiting localized deformation and improving metallic glass plasticity.
Unlike the experimental findings of the samples without notches, a steady shear deformation can be created by the large-scale stress gradient around the two symmetrical notches and the plasticity of metallic glass can be enhanced to a high value of ∼10% under compression tests.
Plasticity in metallic glasses has become reasonably well understood in the last few decades, however plasticity in oxide glasses is not understood despite oxide glass' prevalence in our lives for many millennia.
Yu, H. B. et al. Tensile plasticity in metallic glasses with pronounced β relaxations.
Effectively improving the tensile plasticity of metallic glasses (MGs) becomes more and more important in order to promote their wide application in the structural engineering.
Based on density measurements and positron annihilation lifetime spectroscopy, we conclude that the relative contribution of free volume and nanocrystallization is important for acquiring plasticity in metallic glasses.
