The impact of niobium on the microstructure, texture and magnetic properties of strip-cast grain oriented silicon steel

Fang, Feng; Lan, Meng-Fei; Lu, Xu; Zhang, Y.X.; Wang, Y.; Yuan, Guo; Cao, Guangming; Xu, Yujie; Misra, R.D.K.; Wang, G.D.

doi:10.1016/j.jmmm.2017.06.058

Cited by 25 publications

(14 citation statements)

References 26 publications

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“…Here, 0.06 wt% Nb content was selected based on the other research results [19]. The carbon content was reduced to 0.005 wt% to avoid the formation of NbC according to our previous workes [18]. Figure 1 shows the schedule diagram of conventional hot rolled process and twin-roll casting process.…”

Section: Methodsmentioning

confidence: 99%

“…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. Fang [18] claimed that NbN is an effective additional inhibitor in strip casting grain-oriented silicon steel. Feng [19] studied the precipitation behavior and the texture evolution of grain-oriented silicon steel with different Nb contents and obtained relatively good magnetic properties in the conventional route.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Methodsmentioning

confidence: 99%

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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“…In addition, it is applied in a wide range including electronics and electrical appliances, automobiles, precision instruments, chemical sectors, and aerospace fields . More intensively, glass fiber or carbon fiber reinforced PPS composites are also popularly used in the automobile, aerospace, and other widespread industrial sectors . In particular, PPS and their reinforced parts are capable of enduring high temperatures and resisting well under mechanical loading in some special environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Overall Investigation of Poly (Phenylene Sulfide) from Synthesis and Process to Applications—A Review

Zuo

Tcharkhtchi

Shirinbayan

et al. 2019

Macro Materials & Eng

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Poly (phenylene sulfide) (PPS) is one kind of high‐performance polymer with high thermal stability that can be used widely in different industrial domains. However, according to an investigation of the literature, few reviews have comprehensively focused on the continuous development of PPS applications in the past decade. To meet this demand, this paper provides an overall investigation of PPS polymer and PPS‐based composites from synthesis and process to applications. Briefly, this paper introduces PPS materials according to the following topics. First, the molecular weight distribution and morphology of PPS, as well as their reinforced parts, are introduced. Afterward, the topic is focused on the synthesis, process, and blending of PPS. In the next part, this paper investigates the key points regarding PPS as a high‐performance polymer, focusing on the aspect of thermal behavior and mechanical properties. Finally, PPS composite applications are emphasized and overviewed from a wide range of aspects.

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“…There are two common methods to improve the magnetic properties of materials [ 9 ]. The first one is to fine-tune the alloy composition of the material and introduce new precipitation particles to control the evolution of the texture during the recrystallization process [ 10 , 11 ]. The other and currently most common method is to optimize the microstructure and texture by processing technology, such as twin roll casting or rolling [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Shear Bands Induced by Asymmetric Rolling on Microstructure and Texture Evolution of Non-Oriented 3.3% Si Steel

Fang

Guo

et al. 2020

Materials

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In the present work, the microstructure and texture of non-oriented 3.3% Si steel processed by asymmetric rolling (ASR) and subsequent annealing at different temperatures were compared with those obtained when using traditional symmetric rolling (SR). This work aims to reveal the effect of shear bands introduced by the ASR on the microstructure and texture evolution. The ASR sample reaches a recrystallization fraction of 62% at an annealing temperature of 650 °C, which is 32% higher than that of the SR sample annealed at the same temperature. This can be attributed to the abundant shear bands introduced by the ASR, which serve as the heterogeneous nucleation sites for the recrystallized grains. When increasing the annealing temperature to 750 °C, complete recrystallization could be observed in both asymmetric- and symmetric-rolled samples. When using an annealing temperature of 650 °C, the γ-oriented grains were dominant in the surface layer, while strong Goss-oriented grains could be observed in the center in the ASR sample. This is due to the fragmented small subgrains with different orientations in the surface layer inhibiting the nucleation of Goss- and cube-oriented grains during the annealing. In contrast, numerous Goss- and cube-oriented grains were formed in the surface layer after complete recrystallization when the ASR sample was annealed at a temperature of 750 °C. This may be related to the higher thermal energy, which benefits the nucleation of the Goss- and cube-oriented grains. In addition, ASR significantly increased the strength of η-fiber after complete recrystallization when compared with SR. This work might be helpful to design the rolling and the subsequent annealing processes.

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The impact of niobium on the microstructure, texture and magnetic properties of strip-cast grain oriented silicon steel

Cited by 25 publications

References 26 publications

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

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

Overall Investigation of Poly (Phenylene Sulfide) from Synthesis and Process to Applications—A Review

Effect of Shear Bands Induced by Asymmetric Rolling on Microstructure and Texture Evolution of Non-Oriented 3.3% Si Steel

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