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Yue Q.,Anhui University of Technology | Chen H.-H.,Anhui University of Technology | Yao C.-H.,National Center for Quality Supervision and Test of Steel Material Products | Dan L.U.,National Center for Quality Supervision and Test of Steel Material Products | And 2 more authors.
Journal of Iron and Steel Research | Year: 2012

With the improvement of steel quality demand, the removal of non-metallic inclusions in liquid steel should satisfy much higher requirements. Collision and growth of inclusions in steel is effective method for small diameter inclusion removal. Under different collision condition, non-metallic inclusion in liquid steel collision and growth were summarized with related study. Mechanism of agglomeration of non-metallic inclusions in liquid steel was analyzed. Numerical simulation was a promising method to study the collision and aggregation of non-metallic inclusions. Besides, the perspective on development of non-metallic inclusions collision and growth in steel was given combined with latest research progress.

Kong H.,Anhui University of Technology | Dai W.,Anhui University of Technology | Shao S.,Anhui University of Technology | Yue Q.,Anhui University of Technology | And 3 more authors.
Advanced Materials Research | Year: 2012

The low carbon high manganese steel (C: 0.07, Mn: 2.0, mass percentage) was deoxidized by Ti and Mg alloys, and its features of inclusion and microstructure were systemically studied. Through the scanning electron microscope (SEM) and Energy Dispersive X-ray Detector (EDX), it can be seen that in inclusions, the element of magnesium always coexists with titanium, and no single-phase oxides of magnesium are observed. After etching in 3Vol% natal solution, it's found that the Mg-contained and Ti-contained inclusions can act as nucleation sits for the intragranular acicular ferrite. These results imply that besides the pinning effect, the oxide of magnesium can also participate in the nucleation for intragranular acicular ferrite. Thus, it may be used in the oxide metallurgy to refine the ferrite microstructure. © (2012) Trans Tech Publications, Switzerland.

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