Effect of Niobium on Precipitates and Texture Evolution of Fe-3% Si Grain-oriented Electrical Steel Annealed Hot Band

Hou, Ruogu; Zhu, Chengyu; Li, Guangqiang; Zhou, Bowen; Jia, Junbo

doi:10.2355/isijinternational.isijint-2017-335

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…NbN and NbC are both face-centred cubic, and they are completely soluble in each other. The stoichiometric number of x and y in Nb(C x , N y ) is not constant, assuming that x + y = 1, and there is no vacancy in the crystal structure, x and y can be calculated according to the relationship of lattice parameter with composition [24,25]. The lattice parameter value of NbN and NbC are 4.3900 and 4.4702 Å, respectively.…”

Section: Resultsmentioning

confidence: 99%

Role of Nb-bearing inhibitors in grain-oriented silicon steel manufactured by low-temperature slab reheating process

Yong

Zhu

et al. 2021

Ironmaking & Steelmaking

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A comparative study of precipitates, microstructure, texture and magnetic properties between conventional and Nb-bearing grain oriented silicon steel was carried out. The results show that fine and dispersed Nb-bearing particles are formed in Nb-bearing steel and show stronger pinning force during the whole heat treatment process, which makes a significant effect on the microstructure and texture evolution during the preparation process. Compared to conventional grain oriented silicon steel, Nb-bearing steel exhibits finer microstructure and possesses more Goss grains in hot-rolled band and normalized band. In primary recrystallized band, fine and uniform microstructure is presented in Nb-bearing steel, meanwhile, it is also characterized by strong γfiber and {114}<481> texture. After final annealing, Nb-bearing steel shows better magnetic properties, B 800 =1.87 T and P 1.7/50 =1.25 W kg -1 . In summary, niobium can be used as an effective inhibitor formation element to produce high quality Nb-bearing grain oriented silicon steel manufactured by low-temperature slab reheating process.

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Section: Resultsmentioning

confidence: 99%

Role of Nb-bearing inhibitors in grain-oriented silicon steel manufactured by low-temperature slab reheating process

Yong

Zhu

et al. 2021

Ironmaking & Steelmaking

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“…In the aspect of inherent inhibitor types, besides the common inhibitors (MnS, AlN and Cu 2 S), the Nb-rich particles have been identified to be potential and effective inhibitors in grain-oriented silicon steel due to its desired particle size and number density. Hou [16] stated that the addition of Nb was helpful to obtain precipitates with a higher inhibition effect during hot rolling, leading to adoption the hot band annealing process. Hulka [17] used NbC as mainly inhibitors and observed that the addition of Nb was beneficial to obtain the desirable Goss texture, and the core loss of the silicon steel was lower than that of silicon steels using AlN or MnS as inhibitors.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting

Wang

Zhang

Fang

et al. 2020

Metals

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The Nb-bearing grain-oriented silicon steel sheets were produced by conventional route and novel twin-roll casting route, respectively. The microstructure, texture and precipitate evolution were comparatively investigated by using electron backscattered diffraction (EBSD) and transmission electron microscope (TEM). The findings revealed that the precipitation behavior and the texture evolution were totally different between the two processing routes. In the conventional route, a great number of nanoscale niobium nitride particles (NbN), which acted as mainly grain growth inhibitors were precipitated during hot rolling, while in the twin-roll casting route, due to the rapid solidification, the precipitation of NbN were suppressed and a new type Nb-bearing precipitate enriched with sulfur element was observed in the as-cast strip. Besides, the primary recrystallized texture of conventional specimens was characterized by strong γ-fiber with a peak at {111} <110>, together with very few Goss components. While in the case of twin-roll casting specimens, the strongest primary recrystallized texture was {111} <112> texture and the area fraction of Goss component was much higher than that of conventional specimens. After final high temperature annealing, complete secondary recrystallization was obtained in twin-roll casting specimens and the magnetic induction of B8 was 0.1 T higher than that of conventional specimens.

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A New Review on Inclusion and Precipitate Control in Grain-Oriented Silicon Steels

Zhu

Liu

Xiao

et al. 2022

JOM

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Effect of Niobium on Precipitates and Texture Evolution of Fe-3% Si Grain-oriented Electrical Steel Annealed Hot Band

Cited by 5 publications

References 31 publications

Role of Nb-bearing inhibitors in grain-oriented silicon steel manufactured by low-temperature slab reheating process

Role of Nb-bearing inhibitors in grain-oriented silicon steel manufactured by low-temperature slab reheating process

Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting

A New Review on Inclusion and Precipitate Control in Grain-Oriented Silicon Steels

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