Abstract
Abstract Notched bars of bulk metallic glasses, Pd40Ni40P20 and Zr52.5Cu17.9Ni14.6Al10Ti5 (Vit105), were deformed under 3-point bending conditions, resulting in the formation of shear bands before failure. The immediate environment of shear bands was investigated in detail using fluctuation electron microscopy to extract information on the strain-induced modification of the medium-range order (MRO) and its lateral extension. Characteristic material-independent gradients were observed for the tensile and compressive sides of the samples indicating the impact of the local stress state on the MRO. Our results based on structural changes of the MRO suggest an upper limit of a few microns for the lateral extension of the shear-affected environments of shear bands.
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