Please wait a minute...
 
材料工程  2017, Vol. 45 Issue (6): 104-111    DOI: 10.11868/j.issn.1001-4381.2015.000367
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
对流扩散-多相相变体系内柱状晶/等轴晶形成过程的数值模拟
何银花1, 王发展1,2
1 西安建筑科技大学 材料与矿资学院, 西安 710055;
2 西安建筑科技大学 机电工程学院, 西安 710055
Numerical Simulation of Columnar Crystal/Equiaxed Crystal Formation Model in a Convection Diffusion-multiphase Transformation System
HE Yin-hua1, WANG Fa-zhan1,2
1 College of Material and Mineral Resources, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2 School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
全文: PDF(3625 KB)   HTML()
输出: BibTeX | EndNote (RIS)      
摘要 采用扩散支配相变动力学方法对Fe-Bi-Mn系易切削合金侧向快速凝固过程进行数值研究。建立对流扩散-多相相变体系三维凝固模型,考虑固、液、气三相扩散流动相变对合金凝固的影响,模拟研究合金中MnS和Bi (易切削相)的柱状晶/等轴晶形成过程。结果表明:合金凝固过程中MnS和Bi的柱状晶/等轴晶形成模式强烈受对流扩散和多相相变影响;对流扩散为正值处,溶质的多相质量相变速率较大且富集程度较低,流动稳定易形成柱状晶;对流扩散为负值处,溶质的多相质量相变速率较小且富集程度较高,当晶尖处溶质富集到一定程度,对流扩散与多相相变产生的紊流使柱状晶尖端断裂,成为等轴晶形核中心,此处为等轴晶稳定形成区域。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
何银花
王发展
关键词 Fe-Bi-Mn系合金凝固对流扩散多相相变    
Abstract:The horizontal rapid solidification of Fe-Bi-Mn free-cutting alloys were simulated by using diffusion-governed phase transformation kinetics. The three-dimensional solidification model for a convection diffusion-multiphase transformation system was built. Effects of alloys solidification on solid, liquid and gas phases flow diffusion transformation were considered. The Bi and MnS (free-cutting phases) of alloy columnar crystal/equiaxed crystal formation process were simulated. The results show that columnar crystal/equiaxed crystal formation model of Bi and MnS in alloy solidification is strongly influenced by convection diffusion and multiphase transformation terms; the large multiphase mass transfer rate and small enrichment degree of species easy to form columnar crystal where the convection diffusion term is positive; the small multiphase mass transfer rate and large enrichment degree of species appear at where the convection diffusion term is negative, the tip of columnar crystal breaking is caused by turbulence from convection diffusion and multiphase transformation when the species enriched to some degree, and which becomes the nucleation center of columnar crystal and the equiaxed crystal continues to grow and tends to be stable.
Key wordsFe-Bi-Mn alloy    solidification    convection diffusion    multiphase transformation
收稿日期: 2015-04-02      出版日期: 2017-06-20
中图分类号:  TG146  
通讯作者: 王发展(1966-),男,教授,博士生导师,主要从事易切削材料制备与性能研究,联系地址:西安建筑科技大学材料与矿资学院(710055),E-mail:wangfz10_1@163.com     E-mail: wangfz10_1@163.com
引用本文:   
何银花, 王发展. 对流扩散-多相相变体系内柱状晶/等轴晶形成过程的数值模拟[J]. 材料工程, 2017, 45(6): 104-111.
HE Yin-hua, WANG Fa-zhan. Numerical Simulation of Columnar Crystal/Equiaxed Crystal Formation Model in a Convection Diffusion-multiphase Transformation System. Journal of Materials Engineering, 2017, 45(6): 104-111.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.000367      或      http://jme.biam.ac.cn/CN/Y2017/V45/I6/104
[1] MEHRABIAN R, KEANE M, FLEMINGS M C. Interdendritic fluid flow and macrosegregation; influence of gravity[J]. Metallurgical and Materials Transactions, 1970, 1(5):1209-1220.
[2] 邵媛媛, 杨平, 毛卫民. 电工钢中柱状晶热压缩时取向的变化及对析出的影响[J]. 材料工程, 2014, (10):75-81. SHAO Y Y, YANG P, MAO W M. Evolution of orientations and their influence on precipitation during hot compression of columnar-grained electrical steel[J]. Journal of Materials Engineering, 2014, (10):75-81.
[3] SCHNEIDER M C, GU J P, BECKERMANN C, et al. Modeling of micro-and macrosegregation and freckle formation in single-crystal nickel-base superalloy directional solidification[J]. Metallurgical and Materials Transactions A, 1997, 28(7):1517-1531.
[4] FELICELLI S D, POIRIER D R, HEINRICH J C. Macrosegregation patterns in multicomponent Ni-base alloys[J]. Journal of crystal growth, 1997, 177(1):145-161.
[5] 谭毅, 廖娇, 李佳艳, 等. 电子束熔炼Inconel 740合金不同热处理状态下的组织演变与显微硬度[J]. 材料工程, 2015, 43(4):19-24. TAN Y, LIAO J, LI J Y, et al. Microstructure evolution and microhardness of Inconel 740 alloy in different heat-treatment conditions prepared by electron beam melting[J]. Journal of Materials Engineering, 2015,43(4):19-24.
[6] COMBEAU H, DREZET J M, MO A, et al. Modeling of microsegregation in macrosegregation computations[J]. Metallurgical and Materials Transactions A, 1996, 27(8):2314-2327.
[7] MADISON J, SPOWART J, ROWENHORST D, et al. Modeling fluid flow in three-dimensional single crystal dendritic structures[J]. Acta Materialia, 2010, 58(8):2864-2875.
[8] 许正芳, 徐向俊, 林均品, 等. 热处理对大尺寸铸态高Nb-TiAl合金组织中S-偏析的影响[J]. 航空材料学报, 2007, 27(3):28-32. XU Z F, XU X J, LIN J P, et al. Effect of heat treatment on S-segregation of microstructure for as-cast high Nb containing TiAl alloy[J]. Journal of Aeronautical Materials, 2007, 27(3):28-32.
[9] WU M, LUDWIG A. Using a three-phase deterministic model for the columnar-to-equiaxed transition[J]. Metallurgical and Materials Transactions A, 2007, 38(7):1465-1475.
[10] 王哲, 王发展, 王欣, 等. Fe-Pb合金凝固多相体系内偏析形成过程的三维数值模拟[J]. 物理学报, 2014, 63(7):10103-10114. WANG Z, WANG F Z, WANG X, et al. Three-dimensional modelling of numerical simulation on segregation during Fe-Pb alloy solidification in a multiphase system[J]. Acta Physica Sinica, 2014, 63(7):10103-10114.
[11] 何银花, 王发展, 王哲, 等. Fe-0.03Te-0.3Bi-0.9Mn易切削不锈钢润滑滚动磨损机理研究[J]. 材料工程, 2015, 43(10):85-90. HE Y Y, WANG F Z, WANG Z, et al. Lubricated rolling wear mechanism study on Fe-0.03Te-0.3Pb-0.9Mn free-cutting stainless steel[J]. Journal of Materials Engineering, 2015, 43(10):85-90.
[12] MIRIHANAGE W U, DAI H, DONG H, et al. Computational modeling of columnar to equiaxed transition in alloy solidification[J]. Advanced Engineering Materials, 2013, 15(4):216-229.
[13] KARAGADDE S, BHATTACHARYA A, TOMAR G, et al. A coupled VOF-IBM-enthalpy approach for modeling motion and growth of equiaxed dendrites in a solidifying melt[J]. Journal of Computational Physics, 2012, 231(10):3987-4000.
[14] HUNT J D. Steady state columnar and equiaxed growth of dendrites and eutectic[J]. Materials Science and Engineering, 1984, 65(1):75-83.
[15] BECKERMANN C, WANG C Y. Equiaxed dendritic solidification with convection:part Ⅲ. Comparisons with NH4Cl-H2O experiments[J]. Metallurgical and Materials Transactions A, 1996, 27(9):2784-2795.
[16] RAPPAZ M, GANDIN C A. Probabilistic modelling of microstructure formation in solidification processes[J]. Acta Metallurgica et Materialia, 1993, 41(2):345-360.
[17] GANDIN C A, RAPPAZ M. A coupled finite element-cellular automaton model for the prediction of dendritic grain structures in solidification processes[J]. Acta Metallurgica et Materialia, 1994, 42(7):2233-2246.
[18] 李日, 王健, 周黎明, 等. 基于体积平均法模拟铸锭凝固过程的可靠性分析[J]. 物理学报, 2014, 63(12):8103-8111. LI R, WANG J, ZHOU L M, et al. The reliability analysis of using the volume averaging method to simulate the solidification process in a ingot[J]. Acta Physica Sinica, 2014, 63(12):8103-8111.
[19] 唐鹏钧, 何晓磊, 王兴元,等. 快速凝固/粉末冶金Al-20Si-7.5Ni-3Cu-1Mg-0.25Fe合金的显微组织与力学性能[J]. 航空材料学报, 2013, 33(3):12-17. TANG P J, HE X L, WANG X Y, et al. Microstructure and mechanical properties of Al-20Si-7.5Ni-3Cu-1Mg-0.25Fe alloy prepared by rapidly solidified powder metallurgy[J]. Journal of Aeronautical Materials, 2013, 33(3):12-17.
[20] KUMAR A, ZALO?NIK M, COMBEAU H. Study of the influence of mushy zone permeability laws on macro-and meso-segregations predictions[J]. International Journal of Thermal Sciences, 2012, 54:33-47.
[21] 周静怡, 赵文侠, 郑真,等. 硼含量对IC10高温合金凝固行为的影响[J]. 材料工程, 2014, (8):90-96. ZHOU J Y, ZHAO W X, ZHENG Z, et al. Effect of boron content on solidification behavior of IC10 superalloy[J]. Journal of Materials Engineering, 2014, (8):90-96.
[22] 王哲, 王发展, 何银花, 等. Fe-Bi-Mn三元合金多相相变-扩散体系中易切削相析出规律的数值研究[J]. 金属学报, 2014, 50(11):1393-1401. WANG Z, WANG F Z, HE Y H, et al. Numerical study on free-cutting phase precipitation behavior in Fe-Bi-Mn ternary alloy multiphase transformation-diffusion system[J]. Acta Metallurgica Sinica, 2014, 50(11):1393-1401.
[23] ZALO?NIK M, COMBEAU H. Thermosolutal flow in steel ingots and the formation of mesosegregates[J]. International Journal of Thermal Sciences, 2010, 49(9):1500-1509.
[24] LI J, WU M, HAO J, et al. Simulation of channel segregation using a two-phase columnar solidification model-part Ⅱ:Mechanism and parameter study[J]. Computational Materials Science, 2012, 55:419-429.
[1] 黄敏, 张功, 王栋, 李辉, 董加胜, 楼琅洪. 复杂镍基单晶铸件显微孔洞的形成机理[J]. 材料工程, 2020, 48(2): 123-132.
[2] 刘承林, 苏海军, 张军, 刘林, 傅恒志. 静磁场对定向凝固镍基高温合金组织影响的研究进展[J]. 材料工程, 2019, 47(9): 13-20.
[3] 贾东瑞, 王越, 刘正, 毛萍莉, 王峰, 王志. Y含量对MgZn9YxZr0.5合金热裂敏感性的影响[J]. 材料工程, 2019, 47(7): 126-133.
[4] 罗忠兵, 张嘉宁, 金士杰, 林莉. 定向凝固镍基合金DZ444声学特性的各向异性[J]. 材料工程, 2019, 47(4): 120-126.
[5] 黄高仁, 孙乙萌, 张利, 刘玉林. Mg含量对亚快速凝固Al-Zn-Mg-Cu-Zr合金组织与性能的影响[J]. 材料工程, 2018, 46(9): 109-114.
[6] 杨勇维, 符寒光, 鞠江, 王开明, 雷永平, 朱礼龙, 江亮. 铬对高钒耐磨合金凝固组织和耐磨性能的影响[J]. 材料工程, 2018, 46(9): 122-130.
[7] 黄高仁, 孙乙萌, 张利, 刘玉林. 微量Ce对亚快速凝固Al-Zn-Mg-Cu合金组织与性能的影响[J]. 材料工程, 2018, 46(3): 105-111.
[8] 鲍颖, 骆琳, 俞泽民, 杨冬野, 刘娜, 张国庆, 孙剑飞. 氩气雾化Ti-48Al合金液滴的快速冷却和凝固组织[J]. 材料工程, 2018, 46(12): 117-123.
[9] 卢玉章, 熊英, 彭建强, 申健, 郑伟, 张功, 谢光. 重型燃机定向结晶空心叶片凝固过程的实验与模拟[J]. 材料工程, 2018, 46(1): 8-15.
[10] 付雪松, 孙胃涛, 韩文波, 李康, 陈国清, 周文龙. 基于高温熔凝法Al2O3/ZrO2/YAG共晶陶瓷显微组织演变规律[J]. 材料工程, 2017, 45(2): 46-53.
[11] 王天佑, 王小蒙, 赵子华, 张峥. 热等静压及恢复热处理工艺对DZ125蠕变损伤的影响[J]. 材料工程, 2017, 45(2): 88-95.
[12] 黄高仁, 孙乙萌, 张利, 刘玉林. Ce对Al-Zn-Mg-Cu合金亚快速凝固铸造组织的影响[J]. 材料工程, 2017, 45(11): 102-107.
[13] 马洛宁, 王天佑, 张峥. 短时氧化对定向凝固高温合金不同取向腐蚀性能的影响[J]. 材料工程, 2016, 44(7): 78-87.
[14] 何统求, 王丽, 彭传校, 王胜海. Fe-Cu合金相分离过程[J]. 材料工程, 2016, 44(2): 115-121.
[15] 卢玉章, 申健, 郑伟, 徐正国, 张功, 谢光. 单晶铸件凝固过程工艺优化的数值模拟[J]. 材料工程, 2016, 44(11): 1-8.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
版权所有 © 2015《材料工程》编辑部
地址:北京81信箱44分箱 邮政编码: 100095
电话:010-62496276 E-mail:matereng@biam.ac.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn