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二元合金凝固微观模型的研究现状 被引量：5

Current Research Status of Micro-Scale Solidification Models of Binary Alloys
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摘要 基于对二元合金凝固过程宏观传输耦合数学模型中非平衡凝固路径和局部液相溶质浓度的确定,详细讨论了两种不同类型的微观凝固数学模型,即凝固动力学模型和凝固微观偏析模型,对其中的确定性凝固动力学模型和微观偏析半解析模型的研究现状分别进行了回顾,分别讨论了凝固动力学模型和微观偏析模型的主要影响因素,即过冷度和形核率以及固相反向扩散和枝晶结构粗化,对凝固微观模型在合金凝固过程耦合数值模拟中的应用价值及其未来的研究方向进行了阐述。 According to determine the non-equilibrium solidification path and local liquid solute concentration in the macro transport model during solidification process of binary alloys, the two kinds of micro-scale solidification models are discussed detailedly, viz. solidification kinetics model and miceosegregation model. The current research status of deterministic solidification kinetics model and semi-analytical microsegregation model are reviewed comprehensively, respectively. The main influencing factors of the two models have also been discussed, viz. undercooling and nucleation rate & back-diffusion and coarsening. Further more, the practical value in the coupled numerical simulation of alloy solidification and the future developmental directions of the micro-scale solidification models are elaborated.
作者 冯科 陈登福 徐楚韶 董凌燕 刘清才
机构地区 重庆大学材料科学与工程学院
出处 《重庆大学学报（自然科学版）》 EI CAS CSCD 北大核心 2004年第10期79-83,共5页 Journal of Chongqing University
基金 重庆市科委基金资助项目(6784)
关键词 二元合金 微观模型 凝固动力学 微观偏析 binary alloys micro-scale model solidification kinetics microsegregation
分类号 TG244 [金属学及工艺—铸造]
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参考文献27

  • 1[1]STEFANESCU D M.Methodologies for Modeling of Solidification Microstructure and Their Capabilities[J].ISIJ International, 1995, 35(6): 637-650.
  • 2[2]HOWE A A, KIRKWOOD D H.Computer Prediction of Microsegregation in Peritectic Alloy Systems[J].Materials Science and Technology, 2000, 16(9): 961-967.
  • 3[3]OLDFIELD W A.Quantitative Approach to Casting Solidification Freezing of Cast Iron[J].ASM Trans, 1966, 59: 945-961.
  • 4[4]STEFANESCU D M, UPADHYA G, BANDYOPADHYAY D.Heat Transfer Solidification Kinetics Modeling of Solidification of Castings[J].Metallurgical Transactions A, 1990, 21A: 997-1 005.
  • 5[5]STEFANESCU D M.Critical Review of the Second Generation of Solidification Models for Casting: Macro Transport Transformation Kinetics Codes[A].Modeling of Casting, Welding and Advanced Solidification Processes VI[C].Davos, Switzerland: TMS, 1993.3-20.
  • 6[6]THEVOZ P H, DESBIOLLES J L, RAPPAZ M.Modeling of Equiaxed Microstructure Formation in Casting[J].Metallurgical Transactions A, 1989, 20A: 311-322.
  • 7[7]HUNT J D.Steady State Columnar and Equiaxed Growth of Dendrites and Eutectics[J].Mater Sci Engr, 1984, 65: 75-83.
  • 8[8]CHAO L S, DU W C.Macro Micro Modeling of Solidification[J].Proc Natl Sci Counc Roc(A), 1999, 23(5): 622-629.
  • 9[9]KIM B S.Development of Macrosegregation during Solidification of Binary Metal Alloys[D].Pennsylvania:The Department of Mechanical Engineering of Pennsylvania State University, 2002.
  • 10[10]LI B Q, ANYALEBECHI P N.A Micro/Macro Model for Fluid Flow Evolution and Microstructure Formation in Solidification Processes[J].International Journal of Heat and Mass Transfer, 1995, 38(13): 2 367-2 381.

同被引文献37

  • 1H D Brody, M C Flemings. Solute Redistribution during Dendritic Solidification[J]. Trans Met Soc AIME, 1966,236:615-624.
  • 2Young-Mok Won, B G Thomas. Simple Model of Microsegregation during Solidification of Steels [J]. Metallurgical and Materials Transactions A, 2001,32A (7):1 755-1 767.
  • 3崔忠圻主编.金属学与热处理(第一版)[M].北京:机械工业出版社,1994.
  • 4Yoshiyuki Ueshima, Shozo Mizoguchi, Tooru Matsumiya, et al. Analysis of Solute Distribution in Dendrites of Carbon Steel with δ/γ Tansformation during Solidification [J]. Metallurgical Transactions B. 1986,17B(12) : 845- 859.
  • 5J A Sarreal, G J Abbaschian. The Effect of Solidification Rate on Microsegregation[J]. Metallurgical Transactions A, 1985,17A:2 063-2 073.
  • 6S Kobayashi. Solute Redistribution during Solidification with Diffusion in the Solid Phase: a Theoretical Analysis [J]. Journal of Crystal Growth, 1988,88 : 87-96.
  • 7V.R.Voller,C.Beckermann.A Unified Model of Microsegregation and Coarsening[J].Metallurgical and Materials Transactions A,Vol.30A,No.4,1999,pp.2183-2189.
  • 8Adam J.Papworth,David B.Knorr,David B.Williams.The Evolution of the Segregation Behavior of Alloying Elements in a Low-alloy Steel[J].Scripta Materialia 48 (2003),pp.1301-1305.
  • 9J.H.Kim,J.W.Park,C.H.Lee,E.P.Yoon.Numerical Modeling of Microsegregation in Binary Alloys[J].Journal of Crystal Growth 173 (1997),pp.550-560.
  • 10Wan-Hong Yang,Wei Chen,Keh-Minn Chang,Sarwan Mannan,John De Barbadillo.Monte Carlo Sampling for Microsegregation Measurements in Cast Structures[J].Metallurgical and Materials Transactions A,Vol.31A,No.10,2000,pp.2569-2574.

引证文献5

二级引证文献13

重庆大学学报（自然科学版）
2004年 第10期

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