Nucleation and growth effects in thin ferromagnetic sheets: A review focusing on surface energy-induced secondary recrystallization

Kramer, John

doi:10.1007/bf02647546

Cited by 32 publications

(7 citation statements)

References 33 publications

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“…The texture shown in figure 7(c) approaches a {001} 100 texture. This result is consistent with the formation of {011} 100 and {001} 100 in silicon steel [20,26].…”

Section: Sulfur-annealed Fe-ga-b Alloy (A Alloy)supporting

confidence: 90%

“…It has been correlated to the development of texture with specific surface planes [17][18][19]. Köhler and Kramer suggest that in Fe-Si alloys, surfaceenergy-induced selective growth of {011} grains occurs under very clean surface conditions, and that growth of {001} grains occurs under slight surface contamination with sulfur due to adsorption and segregation of the sulfur [17,20]. However, there is a threshold above which the selective growth of {001} grains is changed to that of {111} grains.…”

Section: Introductionmentioning

confidence: 99%

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Surface-energy-induced selective growth of (001) grains in magnetostrictive ternary Fe–Ga-based alloys

Flatau

2012

Smart Mater. Struct.

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Surface-energy-induced selective grain growth has been used to increase the presence of preferred planes in polycrystalline ternary Fe–Ga based alloys and thereby maximize the magnetostrictive performance of these alloys. In this study, alloys were either doped with elemental sulfur or annealed under sulfur atmospheres to control the sulfur concentration on the surface of samples during annealing. We show that the segregation of sulfur, which is known to play an important role in controlling surface energy, can be correlated to the selective growth of {001} grains and an increase in the saturation magnetostriction of the samples. The results show that sulfur atoms are adsorbed (diffused) from the sulfur atmosphere (bulk interior) and segregate on the sample surface. The correlation between surface chemistry, texture development and magnetostriction is presented. The formation of {001} grains occurred under slight surface segregation of sulfur, i.e. at levels of concentration of surface sulfur between 0.5 and 1.35 at.%, for alloys of (Fe0.813Ga0.187)99B1 and (Fe0.813Ga0.187)99.5B0.5 doped with 50 ppm S. In the case of (Fe0.81Ga0.19)99(NbC)1 alloy annealed under a H2S atmosphere, abnormal growth of (001) grains resulted in 88.3% of the sample area being covered with a (001) grain.

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“…The texture shown in figure 7(c) approaches a {001} 100 texture. This result is consistent with the formation of {011} 100 and {001} 100 in silicon steel [20,26].…”

Section: Sulfur-annealed Fe-ga-b Alloy (A Alloy)supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Surface-energy-induced selective growth of (001) grains in magnetostrictive ternary Fe–Ga-based alloys

Flatau

2012

Smart Mater. Struct.

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“…The mechanism of the RD// 002 texture of the Zr coating is unlikely to be explained solely by solidification during the coating, which was performed under isotropic conditions along the in-plane direction. Conventional steel research has shown that a highly oriented texture to the normal direction can be developed after a casting [44] or high-temperature annealing [45], and the inclusions such as TiN or a lower surface energy of the steel might be responsible for the texture. However, the texture development to the rolling direction, as observed in the plasma coated Zr, has not been reported.…”

Section: α-Zr Texturementioning

confidence: 99%

Texture Evolution in U-10Mo Nuclear Fuel Foils during Plasma Spray Coating with Zr

Takajo

Hollis

Cummins

et al. 2018

QuBS

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A uranium-molybdenum alloy clad in 6061 aluminum has the potential to lead to a wide application of low-enriched uranium fuels, replacing highly enriched uranium for research reactors. A Zr coating acts as a diffusion barrier between the fuel and the aluminum cladding. In this study, U-10Mo (mass %) was coated with Zr using a plasma spray technique recognized as a fast and economical coating method. Neutron time-of-flight diffraction was used to study the microstructure evolution by quantifying the phase fractions of involved phases as well as the texture evolution of U-10Mo and Zr during plasma spray coating with Zr. Quantitative texture analysis revealed that the texture was drastically changed for high coating temperatures, likely due to selective grain growth. Furthermore, the Zr coating showed a preferential orientation, which could be correlated with the initial texture of the uncoated U-10Mo. This could be explained by the epitaxial growth of the Zr on the U-10Mo substrate.

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“…The second approach involved multi-stage cold rolling with intermediate annealing and high temperature annealing of pure Fe\ \Si hot rolled sheet. The driving force for selective grain growth of (110) [001] is the difference in surface energy between (110) and other planes, and is known as surface energy-induced tertiary recrystallization [10,11]. Unfortunately, these techniques are far from industrial applications on a large scale due to high production cost, the environmental impact and the limited product size of products fabricated in above approaches.…”

Section: Introductionmentioning

confidence: 99%

Inhibitor induced secondary recrystallization in thin-gauge grain oriented silicon steel with high permeability

Fang

Zhang

et al. 2016

Materials & Design

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Nucleation and growth effects in thin ferromagnetic sheets: A review focusing on surface energy-induced secondary recrystallization

Cited by 32 publications

References 33 publications

Surface-energy-induced selective growth of (001) grains in magnetostrictive ternary Fe–Ga-based alloys

Surface-energy-induced selective growth of (001) grains in magnetostrictive ternary Fe–Ga-based alloys

Texture Evolution in U-10Mo Nuclear Fuel Foils during Plasma Spray Coating with Zr

Inhibitor induced secondary recrystallization in thin-gauge grain oriented silicon steel with high permeability

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