Experimental Investigations on Solidification of 500-kg Steel Ingots with Laboratory Trials

Chen, Zhiye; Senk, Dieter; Firsbach, Felix

doi:10.1007/s11663-018-1325-5

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…Most of the literature regarding steelmaking have been focused on 1D linear profiles (with emphasis on product central axis) for both conventional ingot casting, e.g. [2][3][4][5] and continuous cast products, e.g. [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Macrosegregation maps in industrial continuous casting low alloyed steel ingots

Gennesson

Evrard

Amhoud³

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Macrosegregation is a critical defect in industrial steel ingots in both conventional ingot castings and continuous castings. Improvements in terms of macrosegregation require to be able to precisely quantify the intensity and the repartition of macrosegregation along the cast product. However, traditional macrosegregation measurements are a tedious and time consuming process. In this study, three different product lengths of the same caster strand were taken during the same heat. Each sample was cut along the longitudinal central plane of the cast product. One additional transverse section was also cut for one of the sample. Drilling with constant spacing was performed on 50% of the area of longitudinal sections and 25% of the transverse section. Carbon and sulfur contents were then measured on each drilled location. Plotting methodologies to produce chemical maps are carefully described regarding the different parameters such as color map choices and normalization methods. Data for all the characterized sections is compared with each other and the differences are commented with the help of the process parameters.

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Section: Introductionmentioning

confidence: 99%

Macrosegregation maps in industrial continuous casting low alloyed steel ingots

Gennesson

Evrard

Amhoud³

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Therefore, thermal and water model experiments were carried out by researchers using molten metal or aqueous solution to reproduce the slab's solidification structure and defect formation. [2,[8][9][10] To study the melting process of steel strips with different thicknesses (feeding ratio) and their effect on solidification structure, Li et al [11] fed steel strips into the crucible of a vacuum induction furnace at a constant speed. Zhao et al [12,13] conducted experiments with different initial temperatures and feeding ratios of steel strips using a similar method and compared the element composition, segregation, porosity, and inclusion distribution of billet under different parameters.…”

Section: Introductionmentioning

confidence: 99%

Effect of Feeding Strip Temperature on Macrosegregation in a Large Continuous Casting Round Bloom

Yao

Liu

Rong

et al. 2023

steel research int.

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Feeding a cold steel strip into continuous casting (CC) mold is an effective method to improve the quality of large round bloom. However, it is difficult to assess the correlation between the bloom quality and the initial temperature of the strip. Therefore, a three‐phase mixed columnar–equiaxed solidification model is developed to evaluate the effect of feeding strip temperature on macrosegregation and solidification structure in a large vertical CC round bloom. The results show that feeding the steel strip induces “crystal rain” in the liquid core of the bloom and increases the volume fraction of the equiaxed phase. After feeding a strip, the flow direction of molten steel is changed, and the flow velocity is increased in the liquid core of the bloom. Furthermore, with initial temperature of the strip decreases, the production efficiency is improved. Compared to the four conditions investigated, the carbon distribution in the bloom is the most uniform, the negative segregation at the centerline of the bloom is the weakest with the value of −35.50%, and the extreme value difference of the macrosegregation index at 20 m below the meniscus is the smallest with the value of 38.35% under the condition of Tinitial = 500 K.

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Distinct Mechanisms for Channel Segregation in Ultra-Heavy Advanced Steel Ingots via Numerical Simulation and Experimental Characterization

Cao

Liu

et al. 2023

Metall Mater Trans B

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Experimental Investigations on Solidification of 500-kg Steel Ingots with Laboratory Trials

Cited by 4 publications

References 18 publications

Macrosegregation maps in industrial continuous casting low alloyed steel ingots

Macrosegregation maps in industrial continuous casting low alloyed steel ingots

Effect of Feeding Strip Temperature on Macrosegregation in a Large Continuous Casting Round Bloom

Distinct Mechanisms for Channel Segregation in Ultra-Heavy Advanced Steel Ingots via Numerical Simulation and Experimental Characterization

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