Figure 4
From: Fatigue-Induced Damage in Zr-Based Bulk Metallic Glasses

Possible failure mode of the large-diameter BMG under cyclic-compression stresses.
(a) Some of the possible shear planes do not cut through the whole specimen, but start from the end of the specimen. (b) When a small piece of the sample was separated from the major part, the stress on the load-carrying cross-section of the sample is still less than the strength of the material. The situation became as if we were running a fatigue test using an irregularly-shaped specimen with higher stress levels. (c) A failed 6-mm-in-diameter specimen in the present study.