 Microvoid coalescence

Microvoid coalescence is a phenomenon observed in materials, particularly metals and polymers, during the process of deformation and fracture. It involves the formation and growth of small voids (or microvoids) within the material's microstructure, which ultimately leads to a coalescence, or merging, of these voids. This mechanism is significant in understanding how materials fail under stress, especially in ductile fracture mechanisms.