复合磁场对金属熔体流动及凝固组织的影响
收稿日期: 2022-01-25
修回日期: 2022-04-03
网络出版日期: 2022-06-16
基金资助
国家自然科学基金项目(U1760204);国家自然科学基金项目(51974183);宁夏中央引导地方科技发展资金项目(2022FRD05007)
Flow and Solidification Microstructure in Metal Melts Driven by a Combined Magnetic Field
Received date: 2022-01-25
Revised date: 2022-04-03
Online published: 2022-06-16
Supported by
National Natural Science Foundation of China(U1760204);National Natural Science Foundation of China(51974183);Central Guidance on Local Science and Technology Development Fund of Ningxia(2022FRD05007)
近年来，复合电磁场作用下的合金凝固组织得到了相当大的关注。本工作以Ga-20%In-12%Sn和Al-7%Si (质量分数)合金为研究对象，研究了脉冲磁致振荡(PMO)与静磁场形成的复合磁场(CMF)对金属熔体流动和Al-7%Si合金凝固组织的影响规律。数值模拟和流动实验结果表明，CMF作用下平行于静磁场方向流型为单环流，垂直于静磁场方向流型为双环流，这与PMO单独作用下熔体流型为双环流有所不同。通过数值模拟CMF作用下金属熔体中电磁力分布和演变结果给出了其流型形成的原因。此外，凝固实验结果表明，本实验参数下CMF处理后的Al-7%Si合金晶粒尺寸小于仅单独施加PMO时所得晶粒尺寸。最后，在现有电磁场作用下金属凝固细晶机制的基础上，结合感应电流、电磁力和强制流动等效应对其凝固细晶机制进行了探讨。
朱锐 , 王俊杰 , 张云虎 , 田志超 , 苗信成 , 翟启杰 . 复合磁场对金属熔体流动及凝固组织的影响[J]. 金属学报, 2024 , 60(2) : 231 -246 . DOI: 10.11900/0412.1961.2022.00032
In recent years, solidified structures in metal alloys driven by combined electromagnetic fields have received considerable attention. In this study, the effect of combined magnetic field (CMF) formed by pulsed magneto oscillation (PMO) and static magnetic field on the melt flow of Ga-20%In-12%Sn (mass fraction) and solidification structure of Al-7%Si alloy was investigated. Results of numerical simulations and flow experiments show that the flow pattern is single rolled in the direction parallel to the static magnetic field and double rolled in the direction perpendicular to the static magnetic field, which is different from the double-rolled flow pattern of the melt when the PMO is activated alone. The distribution and evolution of the electromagnetic forces in the melt under CMF are numerically simulated to explain the formation of the flow pattern. Moreover, the experimental results of solidification show that the grain size of the CMF-treated Al-7%Si alloy is smaller than that obtained when PMO is applied. Finally, the grain refinement mechanism of the Al-7%Si alloy under the influence of electromagnetic fields is discussed in relation to the effects of induced currents, electromagnetic forces, and forced flow based on the previously proposed mechanism of grain refinement in solidified metals driven by electromagnetic fields.
| 1 | Gao S Y, Le Q C, Zhang Z Q, et al. Effects of Al-Al4C3 refiner and ultrasonic field on microstructures of pure Mg [J]. Acta Metall. Sin., 2010, 46: 1495 |
| 高声远, 乐启炽, 张志强 等. Al-Al4C3细化剂和超声场对纯Mg组织的影响 [J]. 金属学报, 2010, 46: 1495 | |
| 2 | Xiong Y H, Li P J, Yang A M, et al. Effects of foundry variables and refiners on cast structures of superalloy K4169 I. Grain structures and grain refinement mechanisms [J]. Acta Metall. Sin., 2002, 38: 529 |
| 熊玉华, 李培杰, 杨爱民 等. 铸造工艺参数和细化剂对K4169高温合金铸态组织的影响 Ⅰ. 晶粒组织及晶粒细化机理 [J]. 金属学报, 2002, 38: 529 | |
| 3 | Venkateswarlu K, Das S K, Chakraborty M, et al. Influence of thermo-mechanical treatment of Al-5Ti master alloy on its grain refining performance on aluminium [J]. Mater. Sci. Eng., 2003, A351: 237 |
| 4 | Tang P, Li W F, Wang K, et al. Effect of Al-Ti-C master alloy addition on microstructures and mechanical properties of cast eutectic Al-Si-Fe-Cu alloy [J]. Mater. Des., 2017, 115: 147 |
| 5 | Wei S B, Wang P, Niu Z P, et al. Development of research on grain refiners for aluminum alloys [J]. Foundry Technol., 2013, 34: 89 |
| 卫少波, 王 璠, 牛志鹏 等. 铝合金晶粒细化剂的研究进展 [J]. 铸造技术, 2013, 34: 89 | |
| 6 | Zhang L, Zhan W, Jin F, et al. Microstructure and properties of A357 aluminium alloy treated by pulsed magnetic field [J]. Mater. Sci. Technol., 2018, 34: 698 |
| 7 | R?biger D, Zhang Y H, Galindo V, et al. The relevance of melt convection to grain refinement in Al-Si alloys solidified under the impact of electric currents [J]. Acta Mater., 2014, 79: 327 |
| 8 | Zhang Y H, R?biger D, Eckert S. Solidification of pure aluminium affected by a pulsed electrical field and electromagnetic stirring [J]. J. Mater. Sci., 2016, 51: 2153 |
| 9 | Ma R, Xiang S Q, Zhang X F. Repairing irreversible hydrogen-induced damages using electric current pulse [J]. Int. J. Hydrogen Energy, 2020, 45: 16909 |
| 10 | Xiang S Q, Zhang X F. Residual stress removal under pulsed electric current [J]. Acta Metall. Sin. (Engl. Lett.), 2020, 33: 281 |
| 11 | Zhang X F, Qin R S. Separation of electrically neutral non-metallic inclusions from molten steel by pulsed electric current [J]. Mater. Sci. Technol., 2017, 33: 1399 |
| 12 | Zhang L M, Liu H N, Li N, et al. The relevance of forced melt flow to grain refinement in pure aluminum under a low-frequency alternating current pulse [J]. J. Mater. Res., 2016, 31: 396 |
| 13 | Zhang L M, Li N, Zhang R, et al. Effect of medium-density direct current on dendrites of directionally solidified Pb-50Sn alloy [J]. Mater. Sci. Technol., 2016, 32: 1877 |
| 14 | Zhang L, Guo X, Gao J W, et al. Effect of electromagnetic stirring on microstructure and mechanical properties of TiB2 particle-reinforced steel [J]. Acta Metall. Sin., 2020, 56: 1239 |
| 张 林, 郭 晓, 高建文 等. 电磁搅拌对TiB2颗粒增强钢组织和力学性能的影响 [J]. 金属学报, 2020, 56: 1239 | |
| 15 | Wu C L, Li D W, Zhu X W, et al. Experimental study of macrostructure and segregation by a novel electromagnetic nozzle swirling flow combined with electromagnetic stirring in continuous casting [J]. Metall. Mater. Trans., 2021, 52B: 1207 |
| 16 | Zou Q C, Tian H, Zhang Z X, et al. Controlling segregation behavior of primary Si in hypereutectic Al-Si alloy by electromagnetic stirring [J]. Metals, 2020, 10: 1129 |
| 17 | Wang F, Eskin D, Mi J W, et al. A synchrotron X-radiography study of the fragmentation and refinement of primary intermetallic particles in an Al-35Cu alloy induced by ultrasonic melt processing [J]. Acta Mater., 2017, 141: 142 |
| 18 | Wang G, Wang Q, Balasubramani N, et al. The role of ultrasonically induced acoustic streaming in developing fine equiaxed grains during the solidification of an Al-2 Pct Cu alloy [J]. Metall. Mater. Trans., 2019, 50A: 5253 |
| 19 | Wang G, Dargusch M S, Qian M, et al. The role of ultrasonic treatment in refining the as-cast grain structure during the solidification of an Al-2Cu alloy [J]. J. Cryst. Growth, 2014, 408: 119 |
| 20 | Wang H P, Lü P, Cai X, et al. Rapid solidification kinetics and mechanical property characteristics of Ni-Zr eutectic alloys processed under electromagnetic levitation state [J]. Mater. Sci. Eng., 2020, A772: 138660 |
| 21 | Zhao J F, Wang H P, Wei B. A new thermodynamically stable Nb2Ni intermetallic compound phase revealed by peritectoid transition within binary Nb-Ni alloy system [J]. J. Mater. Sci. Technol., 2022, 100: 246 |
| 22 | Zhao J F, Wang H P, Zou P F, et al. Liquid structure and thermophysical properties of ternary Ni-Fe-Co alloys explored by molecular dynamics simulations and electrostatic levitation experiments [J]. Metall. Mater. Trans., 2021, 52A: 1732 |
| 23 | Wang D, Li H Q, Zhang X L, et al. The influence of pulse magnetic field intensity on the morphology and electrochemical properties of NiCoS alloys [J]. Surf. Coat. Technol., 2020, 403: 126406 |
| 24 | Li L, Liang W L, Ban C Y, et al. Effects of a high-voltage pulsed magnetic field on the solidification structures of biodegradable Zn-Ag alloys [J]. Mater. Charact., 2020, 163: 110274 |
| 25 | Shao Q, Kang J J, Xing Z G, et al. Effect of pulsed magnetic field treatment on the residual stress of 20Cr2Ni4A steel [J]. J. Magn. Magn. Mater., 2019, 476: 218 |
| 26 | Zhang L, Zhou W, Hu P H, et al. Microstructural characteristics and mechanical properties of Mg-Zn-Y alloy containing icosahedral quasicrystals phase treated by pulsed magnetic field [J]. J. Alloys Compd., 2016, 688: 868 |
| 27 | Jie J C, Yue S P, Liu J, et al. Revealing the mechanisms for the nucleation and formation of equiaxed grains in commercial purity aluminum by fluid-solid coupling induced by a pulsed magnetic field [J]. Acta Mater., 2021, 208: 116747 |
| 28 | Teng Y F, Li Y J, Feng X H, et al. Effect of rectangle aspect ratio on grain refinement of superalloy K4169 under pulsed magnetic field [J]. Acta Metall. Sin., 2015, 51: 844 |
| 滕跃飞, 李应举, 冯小辉 等. 脉冲磁场作用下矩形截面宽厚比对K4169高温合金晶粒细化的影响 [J]. 金属学报, 2015, 51: 844 | |
| 29 | Zhang K L, Li Y J, Yang Y S. Simulation of the influence of pulsed magnetic field on the superalloy melt with the solid-liquid interface in directional solidification [J]. Acta Metall. Sin. (Engl. Lett.), 2020, 33: 1442 |
| 30 | Zhang Y H, Zhong H G, Zhai Q J. Research progress of grain refinement and homogenization of solidified metal alloys driven by pulsed electromagnetic fields [J]. J. Iron Steel Res., 2017, 29: 249 |
| 张云虎, 仲红刚, 翟启杰. 脉冲电磁场凝固组织细化和均质化技术研究与应用进展 [J]. 钢铁研究学报, 2017, 29: 249 | |
| 31 | Zi B T, Ba Q X, Cui J Z, et al. Effect of strong pulsed electromagnetic field on metal's solidified structure [J]. Acta Phys. Sin., 2000, 49: 1010 |
| 訾炳涛, 巴启先, 崔建忠 等. 强脉冲电磁场对金属凝固组织影响的研究 [J]. 物理学报, 2000, 49: 1010 | |
| 32 | Zhang K L, Li Y J, Yang Y S. Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169 [J]. J. Mater. Sci. Technol., 2020, 48: 9 |
| 33 | Wang B, Yang Y S, Sun M L. Microstructure refinement of AZ31 alloy solidified with pulsed magnetic field [J]. Trans. Nonferrous Met. Soc. China, 2010, 20: 1685 |
| 34 | Zhou Q, Chen L P, Yin J. Effects of low-voltage pulsed magnetic field and pouring temperature on solidified structure of Al-4.5%Cu alloy [J]. Adv. Mater. Res., 2011, 399-401: 2139 |
| 35 | Liao X L, Zhai Q J, Luo J, et al. Refining mechanism of the electric current pulse on the solidification structure of pure aluminum [J]. Acta Mater., 2007, 55: 3103 |
| 36 | Li J, Ma J H, Gao Y L, et al. Research on solidification structure refinement of pure aluminum by electric current pulse with parallel electrodes [J]. Mater. Sci. Eng., 2008, A490: 452 |
| 37 | Gong Y Y, Cheng S M, Zhong Y Y, et al. The solidification technology of pulsed magneto oscillation [J]. Acta Metall. Sin., 2018, 54: 757 |
| 龚永勇, 程书敏, 钟玉义 等. 脉冲磁致振荡凝固技术 [J]. 金属学报, 2008, 54: 757 | |
| 38 | Gong Y Y, Luo J, Jing J X, et al. Structure refinement of pure aluminum by pulse magneto-oscillation [J]. Mater. Sci. Eng., 2008, A497: 147 |
| 39 | Xu Z S, Li Q X, Liang Z Y, et al. Morphology of the Al-4.5wt%Cu alloy by pulse magneto oscillation treatment [J]. Shanghai Met., 2015, 37(2): 31 |
| 徐智帅, 李祺欣, 梁柱元 等. 脉冲磁致振荡下Al-4.5wt%Cu合金微观组织形态 [J]. 上海金属, 2015, 37(2): 31 | |
| 40 | Cheng Y, Xu Z S, Zhou Z, et al. Application of PMO solidification homogenization technology in continuous casting production of GCr15 bearing steel [J]. Shanghai Met., 2016, 38(4): 54 |
| 程 勇, 徐智帅, 周 湛 等. PMO凝固均质化技术在连铸GCr15轴承钢生产中的应用 [J]. 上海金属, 2016, 38(4): 54 | |
| 41 | Sun J, Sheng C, Wang D P, et al. Influence of pulsed magneto-oscillation on microstructure and mechanical property of rectangular 65Mn steel ingot [J]. J. Iron Steel Res. Int., 2018, 25: 862 |
| 42 | Hua J S, Zhang Y J, Wu C Y. Grain refinement of Sn-Pb alloy under a novel combined pulsed magnetic field during solidification [J]. J. Mater. Process. Technol., 2011, 211: 463 |
| 43 | Tan S L, Zhou Q, Zhang S, et al. Effect of compound magnetic field on solidified structure of Mg97Y2Cu1 alloy reinforced by long period ordered structure [J]. Spec. Cast. Nonferrous Alloys, 2014, 34: 1027 |
| 谭水淋, 周 全, 章 森 等. 复合磁场对Mg97Y2Cu1合金凝固组织的影响 [J]. 特种铸造及有色合金, 2014, 34: 1027 | |
| 44 | Hu S P, Chen L P, Zhou Q, et al. Effects of compound magnetic field of pulsed and alternate field on solidified structure and mechanical properties of AZ31 magnesium alloy [J]. Spec. Cast. Nonferrous Alloys, 2018, 38: 303 |
| 胡世平, 陈乐平, 周 全 等. 脉冲-交流磁场对AZ31镁合金组织及力学性能的影响 [J]. 特种铸造及有色合金, 2018, 38: 303 | |
| 45 | Zhan W, Jin F, Liu X R, et al. Effects of compound magnetic field on microstructure and mechanical properties of the Mg93Zn6Y1 alloy [J]. Spec. Cast. Nonferrous Alloys, 2018, 38: 309 |
| 占 维, 金 帆, 刘栩瑞 等. 复合磁场对Mg93Zn6Y1合金凝固组织和力学性能的影响 [J]. 特种铸造及有色合金, 2018, 38: 309 | |
| 46 | Xu Y Y. Fundmental research on magnetohydrodynamics in secondary cooling zone of round billet continuous casting under the application of PMO [D]. Shanghai: Shanghai University, 2021 |
| 徐燕祎. PMO在圆坯连铸二冷区中的磁流体力学基础研究 [D]. 上海: 上海大学, 2021 | |
| 47 | Xu Y Y, Zhao J, Ye C Y, et al. Distributions of electromagnetic fields and forced flow and their relevance to the grain refinement in Al-Si alloy under the application of pulsed magneto-oscillation [J]. Acta Metall. Sin. (Engl. Lett.), 2022, 35: 254 |
| 48 | Qin R S, Yan H C, He G H, et al. Exploration on the fabrication of bulk nanocrystalline materials by direct nanocrystallizing method I. Nucleation in disordered metallic media by electropulsing [J]. Chin. J. Mater. Res., 1995, 9: 219 |
| 秦荣山, 鄢红春, 何冠虎 等. 直接晶化法制备块状纳米材料的探索──Ⅰ 脉冲电流作用下无序金属介质的成核理论 [J]. 材料研究学报, 1995, 9: 219 | |
| 49 | Wang B, Yang Y S, Zhou J, et al. Structure refinement of pure Mg under pulsed magnetic field [J]. Mater. Sci. Technol., 2011, 27: 176 |
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