The Formation and Occurrence of Non-Metallic Inclusions of Si-Doped Steel during Continuous Casting

Dong Yih Lin; Sheng Min Yang

doi:10.4028/www.scientific.net/KEM.479.13

Paper Titles

Preface, Sponsors and Organizing Committees

Effects of Surface Active Element on the Biocompatibility of High Nitrogen Stainless Steel
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Quench Brittleness of 12%Cr Martensitic Heat-Resistant Steel
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The Formation and Occurrence of Non-Metallic Inclusions of Si-Doped Steel during Continuous Casting
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Microstructure and Mechanical Properties of Molybdenum Alloy Strengthened by Lanthanum Oxide and Silicon
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AZ80 Mg Alloy Synthesized by Spray Forming and its Extrudability
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Effect of Carbon Migration on Sulfide Stress Corrosion Cracking Behavior of Dissimilar Joints in Wet H₂S Environment
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Microstructures and Mechanical Properties of Dissimilar Metal Weld A508/52M/316L Used in Nuclear Power Plants
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Amorphization Behavior of Ni₅₇Zr₂₀Ti₂₂Ge₁ Powders by Mechanical Alloying
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 479The Formation and Occurrence of Non-Metallic...

The Formation and Occurrence of Non-Metallic Inclusions of Si-Doped Steel during Continuous Casting

Abstract:

Inclusion in steel material plays a decisive role on the purity of steels that becomes more important in the energy critical age. This study was focused on the number and morphology of inclusions with different cooling rate in the continuous casting process. A low carbon steel with 3.36 wt% silicon content was used as test material, which was soaked at 1100°C, 1250°C and 1400°C for 2 hours. The analyzed results of microstructure and chemical compositions showed the inclusions were not dissolved into matrix but formed as compounds like oxide, sulfide, and nitride after reheating at 1100°C. However, the inclusion size and average number possessed increasable trend, compared to as-cast sample. Manganese sulfide began to be dissolved into matrix by reheating at 1250°C. Some evidences showed the dissolution of aluminum nitride under the reheating at 1400°C. The inclusion size varied from 8 μm to 3 μm, and average number decreased with increasing soaking temperature.

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Periodical:

Key Engineering Materials (Volume 479)

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13-21

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.479.13

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Online since:

April 2011

Authors:

Dong Yih Lin, Sheng Min Yang

Keywords:

Continuous Casting Process, Nitride, Oxide, Sulfide

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