Local crystallization in amorphous Fe80Si11B9 ribbon by pulsed laser interference heating

Kusiński, J.; Czyż, Olaf; Radziszewska, A.; Dłużewski, Piotr; Morawiec, Krzysztof; Ostrowski, Roman; Morgiel, J.

doi:10.1016/j.matchar.2022.112262

Cited by 6 publications

(2 citation statements)

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“…The increase in the number of laser pulses and energy led to the formation of a more macroscopically visible interference pattern on the surface of the amorphous ribbon, and are shown in Figure 4. The structural changes created on the surface of Fe77Cu1Si13B9 ribbons resulting from the use of variable energy and the number of pulses correspond to our previous results obtained for FeSiB [6,24]. Therefore, the use of a small number of pulses (10) and a lower beam energy (60-100 mJ) to heat the amorphous ribbon leads to the effect of heating its surface to a ribbon thickness of approximately 100 nm.…”

Section: Scanning Electron Microscopy Examinationssupporting

confidence: 81%

“…The accumulation of liquid material, as a result of heat conduction, could lead to deeper melting of the ribbon in this area, and after the heating cycle stopped, it could lead to its vitrification again [32]. Similar structural changes were also discovered in our previous structure obtained in FeSiB ribbons [6,24]. The presence of cooper in the Fe77Cu1Si13B9 alloy led to conditions that favoured nucleation rather than the growth of existing grains, as confirmed by Kulik [23].…”

Section: Discussionsupporting

confidence: 68%

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Influence of Pulsed Interference Laser Heating on Crystallization of amorphous Fe77Cu1Si13B9 Ribbons

Radziszewska,

Czyż

2024

Preprint

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The amorphous Fe77Cu1Si13B9 ribbons were treated with pulsed laser interference heating (PLIH). It was confirmed here that the use of the laser heating process allowed for obtaining two-dimensional crystallised micro-areas, periodically distributed (at a distance of 17µm) on the surface of the amorphous ribbons. The correlation between structural changes (SEM, TEM, HRTEM) and the distribution of magnetic field lines of heated amorphous Fe77Cu1Si13B9 (FeCuSiB) ribbons is presented. Particular attention is paid to structure changes in micro-areas where, by controlling the laser interference heating process, partial crystallisation of amorphous alloys and the formation of clusters or single nanocrystallites (α-Fe(Si)) embedded in an amorphous matrix are given. The addition of copper to the FeSiB alloy promoted inhibition of grain growth. Electron holography of micro-areas confirmed shifts of the magnetic field lines in the areas of nanocrystallites, the presence of which in the structure caused magnetisation of the surrounding amorphous matrix.

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Section: Scanning Electron Microscopy Examinationssupporting

confidence: 81%