研究目的
To study the effect of focused pulsed laser radiation (number of pulses and power density) on the composition, structure, and microhardness of an amorphous FeSi6B16 metal alloy tape.
研究成果
Focused laser radiation in any exposure mode causes high-temperature heating of the surface of an amorphous alloy in the irradiation zone, leading to melting of the material surface and propagation of the heat wave front from the strongly heated surface to its inner layers. This induces the redistribution of elements in the Fe–Si–B system, a change in the structure, and an increase in the microhardness. The study demonstrates the potential of laser treatment for modifying the properties of amorphous metal alloys.
研究不足
The study is limited to the effects of focused pulsed laser radiation on an amorphous FeSi6B16 metal alloy tape. The findings may not be directly applicable to other materials or different forms of laser treatment.
1：Experimental Design and Method Selection:
The study involved the use of focused pulsed laser radiation on an amorphous FeSi6B16 metal alloy tape. The states of the alloy before and after laser irradiation were analyzed using atomic force microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and microhardness measurements.
2：Sample Selection and Data Sources:
An amorphous FeSi6B16 metal alloy tape obtained by the spinning method was used. Several strips ~70 mm in length were cut from the tape for the experiment.
3：List of Experimental Equipment and Materials:
A BetAMarker-2010 precision laser marker (Laser Center, St. Petersburg) operating on the basis of a solid-state Nd–YAG laser was used as the radiation source. Other equipment included a SOLVER-47 PRO scanning probe microscope from NT-MDT, DRON-6 and DRON-
4：0 diffractometers, and a SPECS spectrometer for XPS. Experimental Procedures and Operational Workflow:
Laser action on the bands was carried out in natural atmosphere by a focused laser beam. The variable parameters during irradiation were the pump current and the number of laser pulses. The surface topography of the samples before and after laser irradiation was studied using AFM. Structural studies were carried out using X-ray diffraction, and the elemental composition of the surface layers was studied by XPS. The microhardness of the samples was measured according to GOST 2999-75 by the Vickers method.
5：Data Analysis Methods:
The collected array of measured Ra values was averaged and the standard deviation calculated. The results were processed and the spectra decomposed using CasaXPS licensed software.
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