Interaction between Silicon and Titanium in Molten Steel.

Ohta, Mitsuhiko; Morita, Kazuki

doi:10.2355/isijinternational.43.256

Cited by 18 publications

(19 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9. The lines calculated using different e Si Ti values reported by other workers [2][3][4] are also shown in the figure. In this calculation, the e N Si value of 0.0491 at 1 873 K determined in the present study was used.…”

Section: Tin Stability Diagrammentioning

confidence: 90%

“…Using the relations regarding the transformation of the interaction parameters, 5) 3) also used the silver bath iso-activity method and determined e Si Ti value in Fe-Si-Ti melts as 1.43 at 1 873 K for silicon contents up to 4.6 mass%. The results from these investigations 3,4) using the similar technique show a large disagreement on the effect of silicon on the activity coefficient of titanium.…”

Section: Simentioning

confidence: 92%

“…5, and it can be expressed as 177.5/TϪ0.12. The thermodynamic parameters determined in the present study are compared with previous results [2][3][4] in Table 3. where K 4 is the equilibrium constant for Reaction (4), and f N is the activity coefficient of nitrogen in 1 mass% standard state in liquid iron.…”

Section: Simentioning

confidence: 94%

“…Limited investigations have been carried out on the thermodynamics of Fe-Si-Ti 2,3) and Fe-C-Si-Ti system. 4) The e Si Ti value in liquid iron was first reported as 2.1 at 1 873 K by Batalin et al 2) However, this value is too large to explain the titanium nitride formation or the deoxidation equilibria in practical processes.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Thermodynamics of Titanium and Nitrogen in Fe-Si Melt

et al. 2005

View full text Add to dashboard Cite

Section: Tin Stability Diagrammentioning

confidence: 90%

Section: Simentioning

confidence: 92%

Section: Simentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermodynamics of Titanium and Nitrogen in Fe-Si Melt

et al. 2005

View full text Add to dashboard Cite

“…1) Since both Si and Ti are frequently employed as oxidizing agents in iron and steel making processes, their repulsive interaction requires detailed attention. Similarly, the interaction between Si and Ti in solid Fe at relatively low temperature is also expected to have a considerable impact on the product quality.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics of Si and Ti in Solid Fe at 1273 K

Kang

Morita

2011

ISIJ Int.

Self Cite

View full text Add to dashboard Cite

Equilibrium experiments were carried out with solid Fe and liquid Ag to investigate the interactions between Si and Ti in solid Fe. The thermodynamic properties of Si in γ -Fe and α-Fe phases were studied by determining the distribution equilibrium of Si in the Fe and the Ag phases. Using the activity coefficient and the self-interaction parameter of Si in solid Fe, the interaction parameter of Si and Ti in both the solid Fe phases-γ -Fe and α-Fe-was determined as follows:The analysis results for Si and Ti in the solid Fe phase showed reasonable agreement with previous research in α-Fe region. Furthermore, the influence of the interaction between Si and Ti in the solid Fe phases on the formation of secondary inclusions such as Ti-based inclusions was discussed. It was concluded that, during solidification, the interactions among solutes such as Si and Ti should be properly considered because the formation of not only the secondary inclusions but also ferrites may depend on the thermodynamic properties of the solutes.

show abstract

Investigation of Inclusion Characteristics in Ferrosilicon Killed High Silicon Steels

Pindar,

Pande

2024

steel research int.

View full text Add to dashboard Cite

Industrially, the silicon requirement of liquid steel is often met with ferrosilicon (FeSi) instead of high‐purity silicon addition. FeSi, a silicon‐rich alloy, contains impurities typically inherited from its manufacturing stage. Therefore, FeSi addition results in the formation of complex inclusions in the liquid steel. Herein, a detailed inclusion characterization of the samples obtained from the melting experiments for a wide range of silicon concentrations has been carried out to examine the effect of FeSi impurities. Pure silica inclusions evolve to silica‐ and/or alumina‐based Si–Al–(Ti)–O–(TiN) complex inclusions with the increasing addition of FeSi to the steel melt. Reduction of silica by aluminum or titanium, the presence of titanium in the steel melt, and/or TiN inclusions formed at the periphery of oxide inclusions restrict the growth of oxide inclusions, resulting in small‐sized (average) oxide inclusions. The underlying mechanism of such complex (Si–Al–Ti–O–N)‐based inclusions has been explained with the aid of microstructural characterization and thermodynamic calculations. Moreover, the steel–crucible (alumina) interface has also been investigated for inclusion deposits and crucible–steel interaction.

show abstract

Interaction between Silicon and Titanium in Molten Steel.

Cited by 18 publications

References 2 publications

Thermodynamics of Titanium and Nitrogen in Fe-Si Melt

Thermodynamics of Titanium and Nitrogen in Fe-Si Melt

Thermodynamics of Si and Ti in Solid Fe at 1273 K

Investigation of Inclusion Characteristics in Ferrosilicon Killed High Silicon Steels

Contact Info

Product

Resources

About