Results 241 to 250 of about 38,292 (295)

Advances in Fe-based amorphous/nanocrystalline alloys

Journal of Applied Physics, 2022
Fe-based amorphous/nanocrystalline alloys exhibit excellent soft magnetic properties, including high saturation magnetic flux density (Bs), high permeability, low coercivity (Hc), and low magnetostriction. They are utilized in distribution transformers, transformers, reactors, and other devices.
Jifeng Zhou, Junhua You, Keqiang Qiu
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Crystallization of Fe-based amorphous alloys

Journal of Non-Crystalline Solids, 1999
An Fe 73.5 Si 15.5 B 7 Nb 3 Cu 1 alloy with a crystalline grain structure is a soft magnetic material since it has good values of permeability while maintaining a saturation magnetization. Thermal annealing of an amorphous melt spun alloy in the temperature range 480-510°C produces a crystalline dispersion of Fe(Si) particles with diameter of the ...
W.J Botta F, D Negri, A.R Yavari
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Ductile Fe-based amorphous alloy

Materials Science and Engineering: A, 2012
Abstract Experiments demonstrated that the addition of a minute amount of V to Fe 52 Co (20− x ) B 20 Si 4 Nb 4 V x amorphous alloy induces atomic-scale phase separation, which dramatically enhances the plasticity. Especially, Fe 52 Co 17.5 B 20 Si 4 Nb 4 V 2.5 amorphous alloy exhibited a strength of 4.7 GPa and a fracture strain of 8.0%, which ...
Hong-Kyu Kim, Kwang-Bok Lee, Jae-Chul Lee   +2 more
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Magnetization in amorphous Ni-Fe-Based alloys

Physica B+C, 1977
Abstract We report on magnetic measurements on amorphous ( Fe x Ni 1− x ) 80 P 10 B 10 alloys with 0 ⩽ x ⩽ 0.5. The amorphous Ni-rich alloys are characterized as weak itinerant ferromagnets. The curvature of the Arrott plots are used for discussing the appearance of an inhomogeneous magnetization.
J. Schneider, K. Zaveta, A. Handstein, R. Hesske, W. Haubenreisser   +4 more
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Corrosion resistance of Fe-based amorphous alloys

Journal of Alloys and Compounds, 2014
Abstract Fe-based amorphous alloys can be designed to present an attractive combination of properties with high corrosion resistance and high mechanical strength. Such properties are clearly adequate for their technological use as coatings, for example, in steel pipes.
W.J. Botta, J.E. Berger, C.S. Kiminami, V. Roche, R.P. Nogueira, C. Bolfarini   +5 more
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Silicon diffusion in an Fe-based amorphous alloy

Applied Surface Science, 1986
Abstract The segregation rate of Si in amorphous as well as precrystallized Fe 81 B 13.5 Si 3.5 C 2 was determined as a function of time at different temperatures below the crystallization temperature. Analysis of the segregation kinetics yielded diffusion parameters of E = 72±9 kJ/mol, D 0 = 1.7 × 10 −15 m 2 / s for the amorphous specimen ...
G.N. van Wyk, W.D. Roos
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On the invar effect of Fe-based amorphous alloys

Journal of Magnetism and Magnetic Materials, 1983
Abstract Spontaneous volume magnetostriction and forced volume magnetostriction of various Fe-based amorphous alloys have been studied. Invar characteristics of amorphous alloys depend on the electron number per transition metal atom, irrespective of the kinds of transition metal and metalloid elements.
S. Ishio, M. Takahashi, Z. Xianyu, Y. Ishikawa   +3 more
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Diffusion of silicon in Fe-based amorphous and crystalline alloys

Applied Surface Science, 1990
The segregation rate of silicon was measured in three different Fe-based amorphous and crystallized alloys with different silicon contents: 3.5, 5 and 9 at%. Analysis of the segregation kinetics yielded the diffusion activation energies E, as well as the frequency factors D0. A linear dependence was found between In D0 and E.
W.D. Roos, J. Du Plessis, G.N. van Wyk
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