Effect of manufacturing method on the magnetic properties and formation of structural defects in Fe61Co10Y8Zr1B20 amorphous alloy

• Published in: Journal of alloys and compounds Vol. 615; pp. S51 - S55
• Main Authors: Nabialek, M.G., Pietrusiewicz, P., Dospial, M.J., Szota, M., Błoch, K., Gruszka, K., Oźga, K., Garus, S.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier B.V 05-12-2014; Elsevier
• Subjects: Amorphous materials; Amorphous semiconductors, metals, and alloys; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Disordered solids; Domain effects, magnetization curves, and hysteresis; Exact sciences and technology; Ferromagnetic materials; Ferromagnetic saturation; Magnetic hysteresis; Magnetic properties and materials; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Physics; Point and linear structural defects; Structure of solids and liquids; crystallography; X-ray measurements; Ferromagnetic materials; Magnetic hysteresis; Ferromagnetic saturation; Amorphous materials; Point and linear structural defects; X-ray measurements; Magnetization; Line defects; Cooling rate; Amorphous alloy; Soft magnetic materials; Fabrication property relation; Amorphous state structure; Defect formation; Iron base alloys; Transition element alloys
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2013.12.163

•Influence of manufacturing method on structural defects was studied.•Samples were obtained by the use of injection-casting and melt-spinning techniques.•The defects have been indirectly analyzed by approach to ferromagnetic saturation.•Prolonged solidification time allows recombination of atoms arrangement in a volume.•That reduce internal stress and leads to increase in the packing density of atoms.
Soft magnetic properties of amorphous alloys are determined by their structure, which strongly depends on their manufacturing method. Alloys obtained in the form of conventional amorphous alloys (tapes) are cooled with a much higher rate than the material obtained in the form of tiles by the injection casting method. The cooling rate and production method determines the type and number of structural defects created in the volume of produced samples. The paper presents an indirect method for the analysis of structural defects and their effect on the magnetic properties of studied alloys. Basing on initial magnetization curve analysis in the area of so-called approach to ferromagnetic saturation was found that point defects were forming in the samples in the form of tapes. The magnetization process of tiles were influenced by the presence of conglomerates of point defects called quasidislocation dipoles.