Nanoscale Fracture Morphologies of Soft Magnetic CoFeTaB Amorphous Alloy

• Authors: J. Miškuf , K. Csach , A. Juríková , M. Huráková
• Languages of publication: EN

Abstracts

EN

We analyzed the failure characteristics of the bulk metallic glass Co_{43}Fe_{20}Ta_{5.5}B_{31.5} (at.%) deformed by compression and by bending of the ribbons. Under the load the amorphous structure can store high elastic energy. The surface morphology of nanoscale fracture is in accord with the micromechanisms of the failure of the amorphous structure. The fracture surface consists of a smooth mirror cleavage zone and a river pattern zone with nanosized dimples, arranged in lines respecting the periodic corrugation zones, oriented perpendicular to the crack propagation direction. The presence of the failure initiation centers in the ribbon influences the dynamics of crack propagation and also the surface morphology of the fracture.

Keywords

EN

61.43.Dq   62.25.Mn  

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 96-97

Dates

published

2014-07

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Identifiers

DOI

10.12693/APhysPolA.126.96