Effect of Mg on the evolution of non-metallic inclusions in Mn–Si–Ti deoxidised steel during solidification: experiments and thermodynamic calculations

Chang, Chul-Ho; Jung, In‐Ho; Park, S.-C.; Kim, Han Soo; Lee, H.-G.

doi:10.1179/174328105x23932

Cited by 40 publications

(13 citation statements)

References 13 publications

(16 reference statements)

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“…Meanwhile, the changes of inclusions in solid steel during heat treatment have been paid more and more attention to, especially for stainless steels . The evolution of inclusions during the solidification of carbon steels has also been well studied . The current authors previously found that the inclusions in pipeline steels would change from the CaO‐Al 2 O 3 type in molten steel to the MgO‐Al 2 O 3 + CaS complex type after solidification .…”

Section: Introductionmentioning

confidence: 88%

Effect of Cooling Rate on Oxide Inclusions During Solidification of 304 Stainless Steel

Wang

Yang

Zhang

2019

steel research int.

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Laboratory experiments are carried out to investigate the effect of cooling rate on oxide inclusions during the solidification of Si-Mn killed 304 stainless steel. The oxide inclusions in the 304 stainless steel were Al 2 O 3 -SiO 2 -CaO-MnO-MgO system. During the cooling process, the change of inclusions is supposed to consist of two steps. The first step is the precipitation and growth of SiO 2 -MnO-Al 2 O 3 type inclusions during the solidification process of steel. The second step is the transformation of inclusions into the MnO-Cr 2 O 3 -Al 2 O 3 system in solid steel by the interaction between inclusions and the steel matrix. Smaller cooling rate led to the more complete growth and transformation of inclusions. With decreasing the cooling rate, the number of large inclusions increased while that of small inclusions decreased. Meanwhile, the diameter of the inclusions increased. The main reason for the size difference of inclusions at different cooling rates is the difference of inclusion growth during solidification.

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Section: Introductionmentioning

confidence: 88%

Effect of Cooling Rate on Oxide Inclusions During Solidification of 304 Stainless Steel

Wang

Yang

Zhang

2019

steel research int.

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“…They also reported that a FeO layer with a thickness of 5-30 μm was formed at the steel/lining interface. Chang et al also reported that there was a Mg element increase in the molten steel during experiments when using MgO crucibles, indicating that Mg mass transfer occurred between the steel and the MgO-based crucible [9].…”

Section: Introductionmentioning

confidence: 91%

Interaction between Molten Steel, Alumina Lining Refractory and Slag Phase

Wang

Zhang²,

Yang

et al. 2013

Journal for Manufacturing Science &Amp; Production

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Laboratory experiments exploring the interaction between molten steel, slag and lining refractory were performed. The transient erosion and reaction over time were investigated, and the transient change of the reaction layer and inclusions generated in the molten steel were evaluated using optical microscopy and SEM-EDS. Without slag addition before remelting, the FeO from reoxidation entered the space between the lining refractory and the steel and strengthened the erosion of the lining refractory. Several layers were found from the steel to the original lining refractory layer: steel phase, FeO layer, a FeO-rich lining layer and an Original Lining (OL)-rich lining layer. The thickness of the reaction layer increased nearly linearly with the reaction time at an erosion rate of 4.2 μm/min. With slag addition before remelting, the reaction layer between the steel and the original lining materials included several sub-layers: a gap, a slag layer, an FeO-rich lining layer and an Original Lining (OL)-rich lining layer. The thickness of the reaction layer nearly linearly increased with the reaction time and with an erosion rate of 5.7 μm/min. Slags were entrained into the steel occasionally.

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“…8 9,10) The cast microstructures of the steel, which contained large numbers of acicular ferrite, were obviously refined. Then, Wen B. et al advocates that trace Mg was good for the heterogeneous nucleation of acicular ferrite during solidification.…”

Section: Formation Of Acicular Ferrite In Mg Treated Ti-bearing C-mn mentioning

confidence: 99%

Formation of Acicular Ferrite in Mg Treated Ti-bearing C–Mn Steel

Song

et al. 2015

ISIJ Int.

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Effect of Mg on the evolution of non-metallic inclusions in Mn–Si–Ti deoxidised steel during solidification: experiments and thermodynamic calculations

Cited by 40 publications

References 13 publications

Effect of Cooling Rate on Oxide Inclusions During Solidification of 304 Stainless Steel

Effect of Cooling Rate on Oxide Inclusions During Solidification of 304 Stainless Steel

Interaction between Molten Steel, Alumina Lining Refractory and Slag Phase

Formation of Acicular Ferrite in Mg Treated Ti-bearing C–Mn Steel

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