The role of magnetostriction in pulsed laser irradiation of amorphous alloys

Samples of Fe66Co18B15Si1, Fe40Ni38Mo4B18 and Fe72.6Cr22Al4.8Si0.3Y0.3 metallic glasses were irradiated with a pulsed alexandrite laser (λ=750 nm, τ=60 μs) using different laser fluences. Irradiation-induced structural and property modifications were characterized using Mössbauer spectroscopy. Compl...

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Bibliographic Details
Published in:Journal of alloys and compounds 1998-10, Vol.280 (1-2), p.251-254
Main Author: Sorescu, M
Format: Article
Language:English
Subjects:
Amorphous alloys
Applied sciences
Cross-disciplinary physics: materials science
rheology
Electrical and magnetic properties (related to treatment conditions)
Exact sciences and technology
Laser processing
Magnetic properties
Magnetostriction
Materials science
Metals. Metallurgy
Mössbauer spectroscopy
Physics
Radiation treatment (particle and electromagnetic)
Radiation treatments
Treatment of materials and its effects on microstructure and properties
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Summary:Samples of Fe66Co18B15Si1, Fe40Ni38Mo4B18 and Fe72.6Cr22Al4.8Si0.3Y0.3 metallic glasses were irradiated with a pulsed alexandrite laser (λ=750 nm, τ=60 μs) using different laser fluences. Irradiation-induced structural and property modifications were characterized using Mössbauer spectroscopy. Complementary information was obtained from hysteresis loop measurements and scanning electron microscopy (SEM). The experimental data obtained demonstrate the key role played by the magnetostriction constant in explaining the mechanism of irradiation-induced phase transformations in amorphous magnets.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(98)00528-3