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Meeting Materials Science & Technology 2009
Symposium Inclusions and Clean Steels
Presentation Title Behavior of MgO∙Al2O3 Based Inclusions in High-Pressure Boiler Steel during Refining Process
Author(s) Shufeng Yang, Jingshe Li, Lifeng Zhang, Peaslee Kent, Yufeng Wang
On-Site Speaker (Planned) Shufeng Yang
Abstract Scope The steel and slag samples were taken from refining process and MgO∙Al2O3 based inclusions in casing steel were analyzed by SEM and EDS. The results showed that there are three occurrence forms. One is pure MgO∙Al2O3 spinel, another is MgO - Al2O3-CaO-SiO2 complex inclusion with low melting point, the third is MgO∙Al2O3 as core, covered by calcium aluminate. The formation thermodynamics was studied by Factsage6.0 and models of the influence of slag component and vacuum degree and lining on magnesium content in molten steel were established with coexistence theory of slag structure. The results show that magnesium content increase with slag basicity and aluminum content increasing and decreases with CO partial pressure increasing.
Proceedings Inclusion? Definite: A CD-only volume


An Experimental Study of Oxide-Inclusion Evolution as Function of Ti/Al Ratios in Iron Melts
An Overview of Recent Developments in Experimental and Numerical Studies for the In-Situ Measurement of Large Inclusions (~50-400 Microns) in Liquid Steel Processing Vessels
Analysis of Non Metallic Inclusions Using SEM/EDS
Behavior of MgO∙Al2O3 Based Inclusions in High-Pressure Boiler Steel during Refining Process
Control of Inclusions in Bottom Filled Steel Ingots
Control of Ultra-Low Titanium in Ultra-Low Carbon Al-Si Killed Steel
Development and Use of Grain Refiners for Steels
Differences between Physical Water Models and Steel Continuous Casters: A Theoretical Evaluation
Experimental Study on RH Vacuum Decarburization for Ultra-Low-Carbon Steels at Baosteel
Inclusion Nucleation and Growth from Nano-Scale to Mili-Scale
Inclusions and Nozzle Clogging for a Billet Continuous Casting Process
Investigation of Refractory Properties on the Initial Bubble Behavior in the Water Model of Continuous Casting Process
Latest Developments in Spark OES for Iron and Steel Industry: Combined Quantitative Analysis and Analysis of Non-Metallic Inclusions
Modeling of Clogging and Erosion of Nozzle Refractories in Steel Casting
Modelling and Removal of Inclusions in Continuous Casting
Modification of Spinels by Calcium in Liquid Steel
Optimization of Calcium Treatment to Improve Cleanliness of Cast Steel
Reduction of Slivers due to Non-Metallic Inclusion in Continuous Casting
Studies on Inclusions in Steel in the Past 100 Years
The Role of Gas Shrouded Ladle Nozzles in Affecting Steel Quality within a Tundish
Transient Phenomena of Fluid Flow and Inclusion Motion in Continuous Casting Strands
Water Model Simulation for Flow State in Slab Continuous Casting Mold

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