Effect of Surface Oxidation on Decarburization of a Fe-3%Si Steel during Annealing

Guo, Yue; Dai, Fangqin; Hu, Shoutian; Xu, Guang

doi:10.2355/isijinternational.isijint-2018-233

Cited by 9 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The scanning electron microscope (SEM) image of the oxide subscale morphology is shown in Figure 9. The thickness of the oxide layer is about 2-3 μm, its structure consists of Fe 2 SiO 4 on the outer surface, spherical oxide (SiO 2 ) in the intermidiate region, and lamellar oxide near the interface with the metal base, which is also SiO 2 [17,18]. The oxide subscale was initially formed in the oxidizing atmosphere of the process of decarburization, and regulated further in the reducing atmosphere of the process of reduction.…”

Section: Oxide Subscalementioning

confidence: 99%

Research and development of a pilot continuous annealing and MgO coating line for grain-oriented silicon steel

Hua

Zhang

et al. 2022

Ironmaking & Steelmaking

View full text Add to dashboard Cite

To investigate the processes of continuous annealing and MgO coating of grain-oriented silicon steel (GO), a pilot-scale line was developed, which could realize functions such as cleaning, heating, decarburization, reduction, nitriding, and MgO coating in a coil-to-coil manner. A significant feature of the pilot line is the integrated furnace consisting of six furnace units and the inbetween separating devices, which work collaboratively to adjust the lengths, and to separate the annealing atmospheres and temperatures of the different process sections. A series of test runs and experiments was carried out on the line. The results showed that the pilot line had the characteristics of flexible process, accurate process parameters control and reliable atmosphere separation. The results of decarburization, reduction, nitriding, and coating met the requirements of GO. The pilot line provided an excellent platform for the experimental study of the processes of continuous annealing and MgO coating of GO.

show abstract

Section: Oxide Subscalementioning

confidence: 99%

Research and development of a pilot continuous annealing and MgO coating line for grain-oriented silicon steel

Hua

Zhang

et al. 2022

Ironmaking & Steelmaking

View full text Add to dashboard Cite

show abstract

“…Glass film formation under HTA is also a multi-stage process that includes several solid-phase reactions occurring in a wide range of temperatures [ 1 , 3 , 7 , 8 , 9 ]. The formation of GOES surface structure begins as oxidation during DA [ 3 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. An ultrathin layer, mainly consisting of silicon oxide SiO 2 coated with (FeMn)SiO 3 /(FeMn) 2 SiO 4 shells, forms on the steel surface after DA [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…The formation of GOES surface structure begins as oxidation during DA [ 3 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. An ultrathin layer, mainly consisting of silicon oxide SiO 2 coated with (FeMn)SiO 3 /(FeMn) 2 SiO 4 shells, forms on the steel surface after DA [ 12 , 13 ]. Behind it there is a Si-depleted region of the α-Fe solid solution.…”

Section: Introductionmentioning

confidence: 99%

Glass Film Formation on GOES Surface during High-Temperature Annealing: The Mechanism with Amorphous Phase Formation

et al. 2022

View full text Add to dashboard Cite

Ceramic insulation coating (glass film) is an important constituent of grain-oriented electrical steel (GOES) designed for use in transformers. Within the scope of this study, the glass film was obtained by means of interaction between the surface of GOES containing 0.5 wt. % Cu and a heat-resistant MgO coating during annealing up to 1100 °C in the 75%H2 + 25%N2 atmosphere. The structure of glass film was analyzed using X-ray diffraction, glow-discharge optical emission spectroscopy, scanning probe microscopy, scanning electron microscopy, differential scanning calorimetry and thermodynamic calculations. After annealing, the glass film contained the following phases: crystalline (MgFe)2SiO4 and amorphous Fe-based solid solutions. The multi-stage mechanism of the glass film formation on GOES surface during high-temperature annealing was determined.

show abstract

Effects of heating temperature and atmosphere on element distribution and microstructure in high-Mn/Al austenitic low-density steel

Zhang,

Chen,

Zhu

et al. 2024

Int J Miner Metall Mater

View full text Add to dashboard Cite

Effect of Surface Oxidation on Decarburization of a Fe-3%Si Steel during Annealing

Cited by 9 publications

References 19 publications

Research and development of a pilot continuous annealing and MgO coating line for grain-oriented silicon steel

Research and development of a pilot continuous annealing and MgO coating line for grain-oriented silicon steel

Glass Film Formation on GOES Surface during High-Temperature Annealing: The Mechanism with Amorphous Phase Formation

Effects of heating temperature and atmosphere on element distribution and microstructure in high-Mn/Al austenitic low-density steel

Contact Info

Product

Resources

About