Experimental Study on the Activities of Al and Ca in Ferrosilicon

Tomé-Torquemada, Silvia; Glaser, Björn; Hildal, K; Sichen, Du

doi:10.1007/s11663-017-1119-1

Cited by 3 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Specifically, Dummy et al [83,84] determined the activity coefficients of Al, Ca, and Si in liquid Fe-Si-Al-Ca and FeSi65 alloys. More recently, Tome-Torquemada et al [85] performed laboratory experiments to determine the activities of Ca and Al in liquid FeSi50 alloys, containing minor Ca and Al contents. Nevertheless, more research can be done in this area in the future to help the ferroalloy industries to optimize their processes to get purified FeSi alloys.…”

Section: Fesi Alloysmentioning

confidence: 99%

Non-metallic Inclusions in Different Ferroalloys and Their Effect on the Steel Quality: A Review

Wang

Karasev

Park

et al. 2021

Metall Mater Trans B

View full text Add to dashboard Cite

Ferroalloys have become increasingly important due to their indispensable role in steelmaking. In addition, the demand for improved steel qualities has increased considerably, which in turn highlights the quality of ferroalloys. This is due to the fact that the impurities in ferroalloys directly and significantly influence the quality of steel products. To gain a better understanding of the main trace elements and inclusions in ferroalloys (such as FeSi, FeMn, SiMn, FeTi, FeCr, FeMo, FeNb, FeV, FeB, some complex ferroalloys) and their behaviours in steel melt after the additions of these ferroalloys, information from a large number of previous results on this topic was extensively reviewed in this work. The applications of different ferroalloys and their production trends were discussed. In addition, the effects of some trace element impurities from ferroalloys on the inclusion characteristics in steel were also discussed. The possible harmful inclusions in different ferroalloys were identified. Overall, the results showed that the inclusions present in ferroalloys had the following influence on the final steel cleanliness: (1) MnO, MnS and MnO–SiO2–MnS inclusions from FeMn and SiMn alloys have a temporary influence on the steel quality; (2) the effect of large size SiO2 inclusions (up to 200 μm) in FeSi and FeMo alloys on the steel cleanliness is not fully understood. The effect of Al, Ca contents should be considered before the addition of FeSi alloys. In addition, Al2O3 inclusions and relatively high Al content are commonly found in FeTi, FeNb and FeV alloys due to their production process. This information should be paid more attention to when these ferroalloys are added to steel; (3) except for the existing inclusions in these alloys, the Ti-rich, Nb-rich, V-rich carbides and nitrides, which have important effects on the steel properties also should be studied further; and (4) specific alloys containing REM oxides, Cr–C–N, Cr–Mn–O, Al2O3, Al–Ti–O, TiS and Ti(C, N) have not been studied enough to enable a judgement on their influence on the steel cleanliness. Finally, some suggestions were given for further studies for the development of ferroalloy productions.

show abstract

Section: Fesi Alloysmentioning

confidence: 99%