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Fragmentation of Co-Fe-Ta-B Soft Magnetic Amorphous Alloy

100%

Miškuf J., Csach K., Juríková A., Huráková M., Tabachnikova E.

Acta Physica Polonica A

2015

vol. 127

issue 2

558-560

The main limitation of high-strength Co-based bulk metallic glasses for their application as structural materials is the large brittleness. Spontaneously emerging cracks in the alloy degrade the magnetic properties. We analyzed the failure characteristics of Co_{43}Fe_{20}Ta_{5.5}B_{31.5} bulk soft magnetic metallic glass deformed in the compression at room temperature and the low strain rate. Under loading the amorphous structure stores high elastic energy. During the failure this energy is released and the alloy breaks into small particles or powder exhibiting a fragmentation mode.

Low Temperature Failure of Al_{90}Fe_7Ta_3 Amorphous Alloys

86%

Miškuf J., Csach K., Juríková A., Bengus V., Tabachnikova E., Shumilin S., Podolskiy A.

Acta Physica Polonica A

2010

vol. 118

issue 5

823-824

The fractographic analysis was used for the interpretation of ultra-low temperature dependences of yield or fracture stress. Analysis of fracture morphology revealed that dominantly chevron morphology is present and that the failure of this amorphous material initiates at low temperatures at geometrical imperfections of ribbons and these failures are often presented as a premature failure.

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2 Acta Physica Polonica A

1 2015

1 2010

2 Csach K.

2 Juríková A.

2 Miškuf J.

2 Tabachnikova E.

1 Bengus V.

1 Huráková M.

1 Podolskiy A.

1 Shumilin S.

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Fragmentation of Co-Fe-Ta-B Soft Magnetic Amorphous Alloy

Low Temperature Failure of Al_{90}Fe_7Ta_3 Amorphous Alloys