Physical and electrical properties of melt-spun Fe-Si (3–8 wt.%) soft magnetic ribbons

Journal Article · Thu Feb 15 00:00:00 EST 2018 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2017.12.019· OSTI ID:22804892

Jiang, Xiujuan ^[1]; Kukkadapu, Ravi K. ^[2]; Clark, Trevor ^[3]; Roosendaal, Timothy J.; Coffey, Gregory ^[1]; Shield, Jeffrey E.; Mathaudhu, Suveen N. ^[1]

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1. Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354 (United States)
2. Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354 (United States)
3. Department of Mechanical Engineering, University of California, Riverside, CA 92521 (United States)

Highlights: • Increasing processing wheel speed during melt spinning refined both the ribbon cross-sectional thickness and grain size. • Mössbauer studies indicated Si content influenced the number of Fe sites and the magnetic field/structural environments. • Vickers hardness and the elastic modulus were observed to increase in response to elevated Si content and wheel speed. • Increasing Si content diluted the magnetization. - Abstract: Fe-Si alloys ranging from 3 to 8 wt% Si were rapidly solidified using melt spinning. Wheel speeds of 30 m/s and 40 m/s were employed to vary cooling rates. Mössbauer spectroscopic studies indicated the Si content significantly influenced the number of Fe sites, relative abundance of various Fe species, and internal magnetic fields/structural environments. Wheel speed altered Fe speciation only in the 3 wt% sample. Scanning electron microscopy confirmed that increasing the wheel speed refined both the ribbon thickness and grain size. Electron backscatter diffraction results suggest tailoring melt spinning process parameters and alloy chemistry may offer the ability to manipulate {001} texture development. Electrical resistivity measurements were observed to increase in response to elevated Si content. Increased hardness was correlated to elevated Si content and wheel speed.

• OSTI ID: 22804892
• Journal Information: Materials Characterization, Vol. 136; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BINARY ALLOY SYSTEMS
DIFFRACTION
ELECTRIC CONDUCTIVITY
IRON COMPOUNDS
MAGNETIC FIELDS
MAGNETIZATION
SCANNING ELECTRON MICROSCOPY
SILICON COMPOUNDS
TEXTURE
THICKNESS
VICKERS HARDNESS