Three-Dimensional Spatial Distribution of Non-metallic Inclusions on the Entire Cross Section of a Steel Continuous Casting Slab

2021 ◽  
Author(s):  
Wei Chen ◽  
Lifeng Zhang ◽  
Qiang Ren ◽  
Qiangqiang Wang ◽  
Xinyu Cai ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Continuous Casting ◽  
Cross Section ◽  
Three Dimensional ◽  
Entire Cross Section ◽  
Continuous Casting Slab ◽  
Steel Continuous Casting ◽  
Metallic Inclusions

scholarly journals Prediction on the spatial distribution of the composition of inclusions in a heavy rail steel continuous casting bloom

2020 ◽  
Vol 9 (3) ◽  
pp. 5648-5665 ◽  
Author(s):  
Qiang Ren ◽  
Yuexin Zhang ◽  
Lifeng Zhang ◽  
Jujin Wang ◽  
Yanping Chu ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Continuous Casting ◽  
Rail Steel ◽  
Steel Continuous Casting ◽  
Heavy Rail ◽  
Heavy Rail Steel

3D Center Segregation Reconstruction of Steel Continuous Casting Slab

2019 ◽  
Vol 90 (12) ◽  
pp. 1900254 ◽  
Author(s):  
Ruoxiu Xiao ◽  
Jiayu Wang ◽  
Xinyi Xie ◽  
Fujian Guo ◽  
Xiucheng Li
Keyword(s):  
Continuous Casting ◽  
Continuous Casting Slab ◽  
Steel Continuous Casting

scholarly journals Analysis of the Influence of Segmented Rollers on Slab Bulge Deformation

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 231 ◽  
Author(s):  
Qin Qin ◽  
Ming Li ◽  
Jianlin Huang
Keyword(s):  
Continuous Casting ◽  
Three Dimensional ◽  
Dynamic Contact ◽  
Thermomechanical Model ◽  
Continuous Casting Slab ◽  
Roller Diameter

The bulge deformation of the continuous casting slab must be controlled in order to improve the slab quality. In this study, a coupled three-dimensional thermomechanical model is suggested based on dynamic contact between the slab and the rollers, so as to investigate the influence of the rollers in reducing slab bulge deformation. Moreover, the rigid casting rollers in this model are replaced by elastic casting rollers in order to improve the calculation accuracy. Further, the influence of two-segment and three-segment rollers on the slab bulge deformation is systematically studied. The results indicate that the bulge deformation of the slab increased by 74.3% when elastic casting rollers were adopted instead of rigid casting rollers. This deformation was reduced by 29.7% when three-segment rollers were used instead of two-segment rollers. Moreover, the influence of the roller spacing and the roller diameter of the segmented roller on the deformation was studied in detail. In order to achieve the purpose of controlling the bulge deformation, improved segmented roller spacing and diameter were proposed, leading to a 75.4% reduction in the bulge deformation.

Detection and Numerical Simulation of Non-Metallic Inclusions in Continuous Casting Slab

2019 ◽  
Vol 90 (3) ◽  
pp. 1800423
Author(s):  
Xianglong Li ◽  
Baokuan Li ◽  
Zhongqiu Liu ◽  
Ran Niu ◽  
Qiang Liu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Continuous Casting ◽  
Continuous Casting Slab ◽  
Metallic Inclusions

scholarly journals The Three-Dimensional Morphology and Distribution of CaS Inclusions in Continuous Casting Slab of Ni20Mn6 Steel

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3891
Author(s):  
Jing Chen ◽  
Jing Zhang ◽  
Shaobo Zheng ◽  
Jieyu Zhang
Keyword(s):  
Grain Boundary ◽  
Continuous Casting ◽  
Three Dimensional ◽  
Solidification Structure ◽  
Calcium Sulfide ◽  
Electrolytic Extraction ◽  
X Ray ◽  
Continuous Casting Slab ◽  
Austenite Grain ◽  
Austenite Grain Boundary

Calcium sulfide (CaS) inclusion with large and irregular shape is detrimental to the properties of steel. Understanding the shape and distribution of CaS inclusions in a continuous casting (CC) slab is of significance for improving the rolling properties. In this study, CaS inclusions were extracted from CC slab of Ni20Mn6 steel using the electrolytic extraction and investigated by scanning electron microscopy (SEM)-energy dispersive X-ray spectroscopy (EDX). The CaS inclusions morphologies vary with their locations in the CC slab and, thus, are classified into five categories. The thermodynamics calculated results showed that CaS inclusions precipitated at the end of solidification due to the microsegregation of sulfur and calcium in the interdendrite liquid and finally precipitated along the austenite grain boundary. The macrosegregation degree of solutes in different regions is one of the reasons that affect the size of CaS inclusion. The morphologies of CaS inclusion are affected by the solidification structure of slab and austenite grain boundary.

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