Torsional behaviors in Zr-based bulk metallic glass with high stored energy structure

Improved tensile plasticity of bulk metallic glasses by heightening microstructural heterogeneity and energy state

“…Such a rejuvenation process can retard the evolution of structural ordering and relaxation caused by the heating stage of the HRRF [25]. Consequently, for treated BMGs, the lower potential energy barrier of atomic moving due to the much energy content for the looser atomic arrangement in the soft regions makes STZs' activation and operation easier than the as-cast glass [13,26]. In this scenario, many STZs are progressively activated, stimulating new strain fields to generate accordingly.…”

“…1a). The more detailed information on the application of this method is described in earlier work [12,13].…”

“…In this paper, the high rheological rate forming method (HRRF) is proposed [11]. This method can make BMGs stay the amorphous microstructure and increase their microstructural heterogeneity and energy state within centesimal seconds [12,13]. The result shows that this method can remarkably improve the tensile plasticity of BMGs.…”

The Tribological Behaviors in Zr-Based Bulk Metallic Glass with High Heterogeneous Microstructure

“…From this point of view, overcoming brittleness becomes greatly significant. Previous studies demonstrate that fabricating the high microstructural inhomogeneity in BMGs is an emerging strategy for remarkably increasing plasticity [ 17 , 18 , 19 ].…”

“…Inspired by this strategy, we have developed the high rheological rate forming method (HRRF), which could improve plasticity of BMGs by modulating the microstructural heterogeneity of BMGs [ 17 ]. Among the various BMGs, Zr-based BMGs have been promising as structural components in many fields due to their high glass-forming abilities, high strength, and high elastic strain [ 4 ].…”