Electromagnetic melt flow control during solidification of metallic alloys

被引：69

作者：

Eckert, Sven ^{[1
]}

Nikrityuk, Petr A. ^{[4
]}

Willers, Bernd ^{[1
]}

Raebiger, Dirk ^{[1
]}

Shevchenko, Natalia ^{[1
]}

Neumann-Heyme, Hieram ^{[2
]}

Travnikov, Vadim ^{[2
]}

Odenbach, Stefan ^{[2
]}

Voigt, Axel ^{[3
]}

Eckert, Kerstin ^{[2
]}

机构：

[1] HZDR, Inst Fluid Dynam, D-01314 Dresden, Germany

[2] Tech Univ Dresden, Inst Fluid Mech, D-01062 Dresden, Germany

[3] TUD, Inst Comp Sci, D-01062 Dresden, Germany

[4] TU Bergakad Freiberg, CIC Virtuhcon Dept Energy Proc & Chem Engn, D-09596 Freiberg, Germany

来源：

EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS | 2013年 / 220卷 / 01期

关键词：

ROTATING MAGNETIC-FIELD; TO-EQUIAXED TRANSITION; PB-SN ALLOYS; DIRECTIONAL SOLIDIFICATION; DENDRITE FRAGMENTATION; GRAIN-REFINEMENT; FLUID-FLOW; SPIN-UP; MICROSTRUCTURE EVOLUTION; NATURAL-CONVECTION;

D O I：

10.1140/epjst/e2013-01802-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this minireview, we summarize experimental and numerical studies particularly concerned with applications of rotating magnetic fields (RMF) or travelling magnetic fields (TMF) to directional solidification of metal alloys. After introducing some fundamentals of electromagnetic stirring, we review the insights gained into flow-induced modifications of microstructure and the formation of freckles and macrosegregations. We further discuss recent strategies, using time-modulated RMF and TMF, which aim to overcome the deficiencies of conventional stirring, in particular flow-induced macrosegregation, by effectively controlling the flow field. On the microscale, we show that time-varying flows are able to alter the sidebranch characteristics vital to the potential of fragmentation.

引用

页码：123 / 137

页数：15

共 87 条

[1] Dendrite fragmentation by catastrophic elastic remelting [J].

Ananiev, S. ;

Nikrityuk, P. ;

Eckert, K. .

ACTA MATERIALIA, 2009, 57 (03) :657-665

[2] Solidification microstructures and solid-state parallels: Recent developments, future directions [J].

Asta, M. ;

Beckermann, C. ;

Karma, A. ;

Kurz, W. ;

Napolitano, R. ;

Plapp, M. ;

Purdy, G. ;

Rappaz, M. ;

Trivedi, R. .

ACTA MATERIALIA, 2009, 57 (04) :941-971

[3] Modelling of future needs macrosegregation: applications and future needs [J].

Beckermann, C .

INTERNATIONAL MATERIALS REVIEWS, 2002, 47 (05) :243-261

[4]

BENNON WD, 1987, INT J HEAT MASS TRAN, V30, P2161, DOI [10.1016/0017-9310(87)90094-9, 10.1016/0017-9310(87)90095-0]

[5] Visualization of freckle formation induced by forced melt convection in solidifying GaIn alloys [J].

Boden, S. ;

Eckert, S. ;

Gerbeth, G. .

MATERIALS LETTERS, 2010, 64 (12) :1340-1343

[6] Observation of dendritic growth and fragmentation in Ga-In alloys by X-ray radioscopy [J].

Boden, S. ;

Willers, B. ;

Eckert, S. ;

Gerbeth, G. .

INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 2009, 22 (1-4) :30-33

[7] INFLUENCE OF AN EXTERNAL FLOW ON DENDRITIC CRYSTAL-GROWTH [J].

BOUISSOU, P ;

PERRIN, B ;

TABELING, P .

PHYSICAL REVIEW A, 1989, 40 (01) :509-512

[8] Grain refinement induced by electromagnetic stirring: A dendrite fragmentation criterion [J].

Campanella, T ;

Charbon, C ;

Rappaz, M .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (10) :3201-3210

[9] Influence of permeability on the grain refinement induced by forced convection in copper-base alloys [J].

Campanella, T ;

Charbon, C ;

Rappaz, M .

SCRIPTA MATERIALIA, 2003, 49 (10) :1029-1034

[10] Fluid flow and microstructure formation in a rotating magnetic field during the directional solidification process [J].

Chen, Zhao ;

Wen, XiaoLi ;

Chen, ChangLe .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 491 (1-2) :395-401

← 1 2 3 4 5 6 7 8 9 →