| Centerline Segregation in Continuous Casting Billets |
| |
| 作者姓名： | 马长文 沈厚发 黄天佑 |
| |
| 作者单位： | DepartmentofMechanicalEngineering,TsinghuaUniversity,Beijing100084,China |
| |
| 基金项目： | Supported by the Iron and Steel Research Conjunct Foundation of the National Natural Science Foundation of China and Baosteel Co.of China (No. 50174031) |
| |
| 摘 要： | Centerline segregation is of practical significance since it affects the material properties. Centerline segregation in continuous casting billets was studied by solving the fluid flow, solidification, and solute transport equations from the initially liquid steel to the completely solid state using the finite difference method with the SIMPLER algorithm. The results show that the centerline segregation is induced by both the fluid flow in the mushy zone and the accumulation of solute-rich liquid near the solidification front. The species concentration in the center of the strand rises quickly in the mushy region to a maximum at the end of solidification. The most serious segregation occurs along the billet centerline.
|
| 关 键 词： | 中心偏析 金属凝固 连续铸造 坯 数字模拟 钢液 |
Centerline Segregation in Continuous Casting Billets |
| |
| MA Changwen ,SHEN Houfa,HUANG Tianyou.Centerline Segregation in Continuous Casting Billets[J].Tsinghua Science and Technology,2004,9(5):550-554. |
| |
| Authors: | MA Changwen SHEN Houfa HUANG Tianyou |
| |
| Institution: | MA Changwen |
| |
| Abstract: | Centerline segregation is of practical significance since it affects the material properties. Center- line segregation in continuous casting billets was studied by solving the fluid flow, solidification, and solute transport equations from the initially liquid steel to the completely solid state using the finite difference method with the SIMPLER algorithm. The results show that the centerline segregation is induced by both the fluid flow in the mushy zone and the accumulation of solute-rich liquid near the solidification front. The species concentration in the center of the strand rises quickly in the mushy region to a maximum at the end of solidification. The most serious segregation occurs along the billet centerline. |
| |
| Keywords: | metal solidification centerline segregation continuous casting numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
