Experimental Evaluation of the Dissolution Rates of Ti and FeTi70 in Liquid Fe

Pandelaers, Lieven; Barrier, D.; Gardin, Pascal; Wollants, Patrick; Blanpain, Bart

doi:10.1007/s11663-013-9822-z

Cited by 7 publications

(9 citation statements)

References 25 publications

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“…Al, Ti and Mn) and molten steel have been investigated. [12][13][14][15][16][17] The liquid Fe is found to solidify immediately after contacting the cold alloy, while the alloying agent (Al/Mn) heats up and melts due to its low melting temperature. [12][13][14] Also for additions with a melting point higher than Fe, like Ti, internal dissolution can take place.…”

Section: Introductionmentioning

confidence: 99%

“…[12][13][14] Also for additions with a melting point higher than Fe, like Ti, internal dissolution can take place. [15][16][17] Thereafter, Fe/alloy interdiffusion results in the formation of a reaction zone which can be partially solid and liquid depending on the local concentration and temperature. Regarding the inclusion formation, an inclusion free zone is observed in the inner part of the Fe shell.…”

Section: Introductionmentioning

confidence: 99%

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Interfacial Reaction and Inclusion Formation at Early Stages of FeMnSi Addition to Liquid Fe

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interfacial Reaction and Inclusion Formation at Early Stages of FeMnSi Addition to Liquid Fe

et al. 2015

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“…[9][10][11][12][13] Argyropoulos et al studied the dissolution of alloys (FeSi and Ti) by immersing them in molten steel. 9,10) They found that the dissolution consists of two stages, viz.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Reactions at Early Stages of Mn Addition to Liquid Fe

et al. 2014

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Mn is an important alloying agent in steelmaking. Its interaction with liquid Fe during the alloying/deoxidation influences Mn recovery yield and steel cleanliness. We have experimentally studied the interfacial reactions at the early stages of Mn addition to liquid Fe containing various amounts of dissolved oxygen and sulphur. Diffusion couples were obtained by bringing liquid Fe into contact with solid Mn for various durations. After quenching these diffusion couples, the interdiffusion of Fe/Mn and the formation of a reaction zone at the Fe/Mn interface were investigated. The measured Mn concentration profile at the interface was fitted with a theoretical model based on Fick's second law. The magnitude of the fitted apparent diffusion coefficient suggested that a layer of Fe solidified around the cold Mn. While enclosed by this Fe shell, the Mn was partially molten due to its low melting temperature. The formation of oxysulphide inclusions was observed at the Mn-rich side of the interface, while an inclusion free zone was detected in the Fe-rich side close to the interface. Based on these experimental findings and theoretical calculations, the mechanisms governing the Fe/Mn interdiffusion and the inclusion free zone formation were proposed.

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“…It has been reported that the melting rate increases with DRI of higher metallization, 7,8) lower gangue content, 8) DRI particles of higher density, 9) smaller particle size, 2,[10][11][12][13][14] higher temperature of the solid particles, [10][11][12][13][14] increasing the temperature of liquid steel (higher superheat), [10][11][12][13][14][15] higher stirring conditions 7,[12][13][14]16) and a slag composition with a binary basicity ratio between 0.8 and1.2 17,18).…”

Section: Mathematical Modeling Of the Melting Of Sponge Iron In A Batmentioning

confidence: 99%

“…(14) and (15). When the temperature on the surface of the pellet is less than the melting temperature, the equation for the boundary condition is given by Eq.…”

Section: T T Dri S Lagmentioning

confidence: 99%