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Non-metallic Inclusion Evolution in a Liquid Third-Generation Advanced High-Strength Steel in Contact with Double-Saturated Slag

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Slag doubly saturated with CaO and MgO was used to investigate slag–steel–inclusion reactions for a third-generation advanced high-strength steel with an intermediate level of alloying elements (6 pct Mn, 1.5 pct Al and 1.5 pct Si). The change in oxide inclusion composition was Al2O3 → spinel → MgO, as in Al-killed steels. No MnO or SiO2 was detected in the inclusions. (Mg, Mn)S sulfide inclusions apparently formed during solidification.

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We gratefully acknowledge support from the industrial members of the Center for Iron and Steelmaking Research. We also acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by Grant MCF-677785.

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Authors and Affiliations

  1. Nucor Steel Decatur, 4301 Iverson Blvd, Trinity, AL, 35673, USA

    Dai Tang

  2. Center for Iron and Steelmaking Research, Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA, 15213, USA

    Dai Tang & Petrus Christiaan Pistorius

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  1. Dai Tang
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  2. Petrus Christiaan Pistorius
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Correspondence to Petrus Christiaan Pistorius.

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Manuscript submitted September 10, 2010; accepted January 14, 2021.

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Tang, D., Pistorius, P.C. Non-metallic Inclusion Evolution in a Liquid Third-Generation Advanced High-Strength Steel in Contact with Double-Saturated Slag. Metall Mater Trans B 52, 580–585 (2021). https://doi.org/10.1007/s11663-021-02084-y

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