Wallner lines, crack velocity and mechanisms of crack nucleation and growth in a brittle bulk metallic glass

Ductile to brittle transition of fracture of a Zr-based bulk metallic glass: Strain rate effect

“…4(f). The advent of the fine dimples and voids indicates a brittle fracture that is dominated by the cavitation ahead of the crack tip [20,45], which is consistent with the large fracture angle of about 71 (Fig. 3(f)).…”

“…For the sample "c", the fracture angle is about 71 (Fig. 3(f)), showing a remarkable departure from the maximum shear stress direction (45 ). This means that the fracture of the sample "c" under the dynamic case may be not controlled by shear; instead the tension stress could play a significant role.…”

Hydrogel as a Medium for Fluid-Driven Fracture Study

“…At lower velocities this softening and cavitation may take longer to occur, due to the crack loading and resulting in fewer discontinuities. Similar corrugations have been observed in other brittle materials such as brittle metallic glasses (BMGs) and glassy polymers [30][31][32].…”

Toughness of Bulk Metallic Glasses

“…The process repeats, leading to the formation of nanoscale corrugations (NCs) [38,40]. Others, however, hold different views and it has been asserted that FMI is unlikely to play a role in NC formation [38,41]. Narasimhan et al [38], for example, have argued that the FMI mechanism predicts the formation of fingers that should run perpendicular to the crack front, whereas the NCs (as in Figure 1d) run parallel to the crack front.…”