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| Numerical simulation of effects of alloying elements on solidification structure of 20CrMnTi billets |
| LIN Han1， YUE Feng1,2， WU Hua-jie1,2， CHEN Zheng-quan3 |
（1. Metallurgical Engineering Research Institute， University of Science and Technology Beijing， Beijing 100083，China
2. Collaborative Innovation Center of Steel Technology， University of Science and Technology Beijing，Beijing 100083， China
3. Technical Center， Fujian Sansteel Co.， Ltd.， Sanming 365000， Fujian， China） |
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Abstract In order to improve the solidification structure of 20CrMnTi billet， a moving boundary method was used to simulate the temperature distribution of 20CrMnTi billets in continuous casting. On this basis， using CAFE （cellular automaton-finite element analysis） approach， the solidification structure of 20CrMnTi billets were studied by numerical simulation. When the simulation results and actual results were in a good agreement， the effects of alloying elements， such as Si， Cr， Mn and Ti， on the solidification structure of 20CrMnTi billets were further discussed. The simulation results show that within the specified range of alloying elements of the 20CrMnTi steel， with the appropriate reduction of Si， the proportion of the billet equiaxed grains in the center increased， and the number of grains increased， hence the average grain radius reduced. Properly increasing the content of Cr could enhance the ratio of equiaxed grains， reduce the average radius of grain and increase the number of grains. The increased content of Mn tended to raise the ratio of equiaxed grains. Finally， based on the simulation results， the alloy element of the 20CrMnTi steel was adjusted to expand the area of equiaxed grain in the billet center and refine the grain size.
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Received: 16 March 2016
Published: 02 November 2016
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| [1] |
张延玲、刘海玲、阮小江等. 中低碳齿轮钢中合金元素的偏析行为及其对带状组织的影响. 北京科技大学学报, 2009, 31(S1):199Zhang Yan-ling, Liu Hai-ling, Ruan Xiao-jiang, et al. Microsegregation behaviors of alloy elements and their effects on the formation of banded structure in pinion steels. J Univ Sci Technol Beijing. 2009, 31(S1):199
|
| [1] |
张延玲、刘海玲、阮小江等. 中低碳齿轮钢中合金元素的偏析行为及其对带状组织的影响. 北京科技大学学报, 2009, 31(S1):199Zhang Yan-ling, Liu Hai-ling, Ruan Xiao-jiang, et al. Microsegregation behaviors of alloy elements and their effects on the formation of banded structure in pinion steels. J Univ Sci Technol Beijing. 2009, 31(S1):199
|
| [2] |
杨勇、刘浏、崔京玉. 转炉生产20CrMnTi齿轮钢中夹杂物及相分析研究. 钢铁, 2010, 45(10):41Yang Yong, Liu Liu, Cui Jing-yu. Study on Inclusions and Phase Analysis of BOF Produced 20CrMnTi Gear Steel. Iron and Steel.2010, 45(10):41
|
| [2] |
杨勇、刘浏、崔京玉. 转炉生产20CrMnTi齿轮钢中夹杂物及相分析研究. 钢铁, 2010, 45(10):41Yang Yong, Liu Liu, Cui Jing-yu. Study on Inclusions and Phase Analysis of BOF Produced 20CrMnTi Gear Steel. Iron and Steel.2010, 45(10):41
|
| [3] |
马长文、沈厚发、黄天佑等. 等轴晶移动对宏观偏析影响的数值模拟. 材料研究学报, 2004,18(3):232Ma Chang-wen, Shen Hou-fa, et al. Numerical simulation of macro-segregation with equiaxed grains movement.Chinese Journal of Materials Research. 2004,18(3):232
|
| [3] |
马长文、沈厚发、黄天佑等. 等轴晶移动对宏观偏析影响的数值模拟. 材料研究学报, 2004,18(3):232Ma Chang-wen, Shen Hou-fa, et al. Numerical simulation of macro-segregation with equiaxed grains movement.Chinese Journal of Materials Research. 2004,18(3):232
|
| [4] |
刘永康、黄海友、谢建新. 连续柱状晶组织CuNi10Fe1Mn合金变形行为的各向异性. 金属学报, 2015, 51(1):40Liu Yong-kang, Huang Hai-you, Xie Jian-xin. Anisotropic Deformation Behavior of Continuous Columnar-Grained CuNi10Fe1Mn Alloy. Acta Metallurgica Sinica. 2015, 51(1):40
|
| [4] |
刘永康、黄海友、谢建新. 连续柱状晶组织CuNi10Fe1Mn合金变形行为的各向异性. 金属学报, 2015, 51(1):40Liu Yong-kang, Huang Hai-you, Xie Jian-xin. Anisotropic Deformation Behavior of Continuous Columnar-Grained CuNi10Fe1Mn Alloy. Acta Metallurgica Sinica. 2015, 51(1):40
|
| [7] |
P.H.Thevoz, J.L. Desbiolles, M.Rappaz.Modeling of Equiaxed Microstructure Formation in Casting. Metallurgical Transactions A.1989.20A:pp.11-22
|
| [7] |
P.H.Thevoz, J.L. Desbiolles, M.Rappaz.Modeling of Equiaxed Microstructure Formation in Casting. Metallurgical Transactions A.1989.20A:pp.11-22
|
| [8] |
Rappaz M，Gandin C A． Probabilistic modelling of microstructure formation in solidification processes． Acta Metall Mater，1993, 41( 2) : 345
|
| [8] |
Rappaz M，Gandin C A． Probabilistic modelling of microstructure formation in solidification processes． Acta Metall Mater，1993, 41( 2) : 345
|
| [9] |
Martorano M A，Beckermann C，Gandin C A． A solutal interaction mechanism for the columnar-to-equiaxed transition in alloy solidification． Metall Mater Trans A，2003，34( 8) : 1657
|
| [9] |
Martorano M A，Beckermann C，Gandin C A． A solutal interaction mechanism for the columnar-to-equiaxed transition in alloy solidification． Metall Mater Trans A，2003，34( 8) : 1657
|
| [10] |
Kurz W，Fisher D J． Fundamentals of Solidification． Switzer-land: Trans Tech Publications，1989
|
| [10] |
Kurz W，Fisher D J． Fundamentals of Solidification． Switzer-land: Trans Tech Publications，1989
|
| [11] |
Ignaszak Z, Hajkowski M, Hajkowski J. Prediction of dendritic microstructure using the cellular automaton-finite elementmethod for hypoeutecticA-lSi alloys castings.MaterSci, 2006, 12(2):124
|
| [11] |
Ignaszak Z, Hajkowski M, Hajkowski J. Prediction of dendritic microstructure using the cellular automaton-finite elementmethod for hypoeutecticA-lSi alloys castings.MaterSci, 2006, 12(2):124
|
| [12] |
Gandin Ch A, Desbiolles JL, Rappaz M, et al.A three-dimen-sional cellular automaton finite element model for the prediction of solidification grain structures. Metall Mater Trans A, 1999, 30(12): 3153
|
| [12] |
Gandin Ch A, Desbiolles JL, Rappaz M, et al.A three-dimen-sional cellular automaton finite element model for the prediction of solidification grain structures. Metall Mater Trans A, 1999, 30(12): 3153
|
| [13] |
虞觉奇,易文质,陈邦迪,等.二元合金状态图.上海:上海科学技术出版社, 1987: 366Yu Jue-qi, Yi Wen-zhi, Chen Bang-di, et al. Binary Alloy Phase Diagram. Shanghai: Shanghai Science and Technology Press, 1987:366
|
| [13] |
虞觉奇,易文质,陈邦迪,等.二元合金状态图.上海:上海科学技术出版社, 1987: 366Yu Jue-qi, Yi Wen-zhi, Chen Bang-di, et al. Binary Alloy Phase Diagram. Shanghai: Shanghai Science and Technology Press, 1987:366
|
| [14] |
陈家祥.钢铁冶金学.北京:冶金工业出版社, 2004: 311Chen Jia-xiang. Ferrous Metallurgy. Beijing: Metallurgical Industry Press, 2004: 311
|
| [14] |
陈家祥.钢铁冶金学.北京:冶金工业出版社, 2004: 311Chen Jia-xiang. Ferrous Metallurgy. Beijing: Metallurgical Industry Press, 2004: 311
|
| [15] |
李文超.冶金与材料物理化学.北京:冶金工业出版社,2001: 531Li Wen-chao. Physical Chemistry of Metallurgy and Materials. Beijing: Metallurgical Industry Press, 2001: 531
|
| [15] |
李文超.冶金与材料物理化学.北京:冶金工业出版社,2001: 531Li Wen-chao. Physical Chemistry of Metallurgy and Materials. Beijing: Metallurgical Industry Press, 2001: 531
|
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2016, Vol. 51 
