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电解制备含钪铝合金三元相超声细化机制

刘轩 郭志超 薛济来 王曾洁 李想 朱常伟 张鹏举

刘轩, 郭志超, 薛济来, 王曾洁, 李想, 朱常伟, 张鹏举. 电解制备含钪铝合金三元相超声细化机制[J]. 工程科学学报, 2020, 42(11): 1465-1472. doi: 10.13374/j.issn2095-9389.2019.11.28.007
引用本文: 刘轩, 郭志超, 薛济来, 王曾洁, 李想, 朱常伟, 张鹏举. 电解制备含钪铝合金三元相超声细化机制[J]. 工程科学学报, 2020, 42(11): 1465-1472. doi: 10.13374/j.issn2095-9389.2019.11.28.007
LIU Xuan, GUO Zhi-chao, XUE Ji-lai, WANG Zeng-jie, LI Xiang, ZHU Chang-wei, ZHANG Peng-ju. Ultrasonic refining mechanism of ternary phase in Al–Sc based alloys prepared through molten salt electrolysis[J]. Chinese Journal of Engineering, 2020, 42(11): 1465-1472. doi: 10.13374/j.issn2095-9389.2019.11.28.007
Citation: LIU Xuan, GUO Zhi-chao, XUE Ji-lai, WANG Zeng-jie, LI Xiang, ZHU Chang-wei, ZHANG Peng-ju. Ultrasonic refining mechanism of ternary phase in Al–Sc based alloys prepared through molten salt electrolysis[J]. Chinese Journal of Engineering, 2020, 42(11): 1465-1472. doi: 10.13374/j.issn2095-9389.2019.11.28.007

电解制备含钪铝合金三元相超声细化机制

doi: 10.13374/j.issn2095-9389.2019.11.28.007
基金项目: 国家自然科学基金资助项目(51704020,51874035);中央高校基本科研业务费资助项目(FRF-TP-19-034A2)
详细信息
    通讯作者:

    E-mail: jx@ustb.edu.cn

  • 中图分类号: TF82.1

Ultrasonic refining mechanism of ternary phase in Al–Sc based alloys prepared through molten salt electrolysis

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  • 摘要: 研究采用超声协同熔盐电解法制备Al–Si–Sc和Al–Cu–Sc合金,采用光学显微镜、扫描电镜和X射线衍射研究超声对合金中三元含钪强化相形貌与尺寸的影响,进而阐明超声细化机制。研究结果表明,协同超声促使三元AlSiSc相由粗大菱形管状转变为细小实心方棒状,其尺寸由205减小到40 μm左右;超声显著细化三元AlCuSc相团簇尺寸,由约100减小至约30 μm;超声协同细化机制主要是通过提高形核率细化初生Al3Sc相并促进其均匀分布,进而作为形核发育基底,最终实现三元含钪相细化;同时超声也可促进合金溶质均匀分布,避免粗大Al3Sc相析出;超声细化三元含钪相机制主要作用于电解后凝固阶段。
  • 图  1  超声协同熔盐电解设备示意图[17]

    Figure  1.  Schematic of the equipment of molten salt electrolysis, assisted by ultrasound[17]

    图  2  超声协同熔盐电解Al–Si–Sc合金X射线衍射图谱

    Figure  2.  XRD patterns of the Al–Si–Sc alloy, prepared by ultrasound-assisted molten salt electrolysis

    图  3  熔盐电解Al–Si–Sc合金微观凝固组织。(a~c)常规电解合金;(d)超声协同电解合金;(e)超声协同电解–凝固合金

    Figure  3.  Optical micrographs of the Al–Si–Sc alloy, prepared by molten salt electrolysis: (a−c) MSE; (d) US-MSE; (e) US-MSE/US-SOL

    图  4  熔盐电解Al–Si–Sc合金中三元AlSi2Sc2相三维形貌。(a)常规电解合金;(b)图4(a)中点A扫描能谱图;(c)超声协同电解合金;(d)超声协同电解–凝固合金

    Figure  4.  3D morphologies of the AlSi2Sc2 ternary phase in Al–Si–Sc alloy, prepared by molten salt electrolysis: (a) MSE; (b) EDS analysis of point A in Fig.4(a); (c) US-MSE; (d) US-MSE/US-SOL

    图  5  超声协同熔盐电解Al–Cu–Sc合金X射线衍射图谱

    Figure  5.  XRD patterns of the Al–Cu–Sc alloy, prepared by ultrasound-assisted molten salt electrolysis

    图  6  熔盐电解Al–Cu–Sc合金微观组织。(a)常规电解合金金相照片;(b)常规电解合金扫描电镜形貌(插图为深腐蚀后AlCuSc相);(c~d)图6(b)中点A和B的能谱图;(e~f)超声协同电解–凝固合金金相照片(插图为深腐蚀后AlCuSc相扫描电镜形貌)

    Figure  6.  Microstructures of the Al–Cu–Sc alloys prepared by molten salt electrolysis: (a) MSE (OM); (b) MSE (SEM, inserted figure showing the AlCuSc after deep etching); (c–d) EDS analysis of point A and B, respectively in Fig.6(b); (e–f) US-MSE/US-SOL (OM, inserted SEM figure showing the AlCuSc after deep etching)

    图  7  超声协同熔盐电解Al–Cu–Sc合金中三元AlCuSc相扫描电镜形貌。(a) Al3Sc核心;(b)点A能谱图分析;(c) AlCuSc外壳;(d)点B能谱图分析;(e)包覆Al3Sc的AlCuSc相;(f)点C能谱图分析

    Figure  7.  SEM micrographs of the AlCuSc ternary phase in Al–Cu–Sc alloy, prepared by ultrasound-assisted molten salt electrolysis: (a) Al3Sc nuclei; (b) EDS analysis of point A; (c) AlCuSc shell; (d) EDS analysis of point B; (e) Al3Sc covered by AlCuSc phase; (f) EDS analysis of point A

    图  8  熔盐电解二元Al–Sc合金初生Al3Sc相形貌。(a)常规电解合金;(b)超声协同电解合金;(c~d)超声协同电解–凝固合金

    Figure  8.  Morphologies of the primary Al3Sc phase in the binary Al–Sc alloy, prepared by molten salt electrolysis: (a) MSE; (b) US-MSE; (c–d) US-MSE/US-SOL

    图  9  熔盐电解含Sc铝合金三元相超声协同细化机制示意图

    Figure  9.  Schematic for the ultrasonic refining mechanism of the ternary phase in the Al–Sc based alloys by molten salt electrolysis

    表  1  合金含钪相尺寸量化结果

    Table  1.   Particle size of the Sc-containing phase in the investigated alloys

    AlloyParticle size /μm
    MSEUS-MSEUS-MSE/US-SOL
    Al–Sc96±3448±1222±7
    Al–Si–Sc205±82228±9640±10
    Al–Cu–Sc94±3630±5
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  • [1] 田少鲲, 李静媛, 张俊龙, 等. Sc对7056铝合金组织和性能的影响. 工程科学学报, 2019, 41(10):1298

    Tian S K, Li J Y, Zhang J L, et al. Effect of Sc on the microstructure and properties of 7056 aluminum alloy. Chin J Eng, 2019, 41(10): 1298
    [2] Qian Y, Xue J L, Wang Z J, et al. Mechanical properties evaluation of Zr addition in L12-Al3(Sc1–xZrx) using first-principles calculation. JOM, 2016, 68(5): 1293 doi: 10.1007/s11837-016-1880-7
    [3] Riva S, Yusenko K V, Lavery N P, et al. The scandium effect in multicomponent alloys. Int Mater Rev, 2016, 61(3): 203 doi: 10.1080/09506608.2015.1137692
    [4] Czerwinski F. Critical assessment 36: assessing differences between the use of cerium and scandium in aluminium alloying. Mater Sci Technol, 2020, 36(3): 255 doi: 10.1080/02670836.2019.1702775
    [5] Royset J, Ryum N. Scandium in aluminium alloys. Int Mater Rev, 2005, 50(1): 19 doi: 10.1179/174328005X14311
    [6] 李亮星, 王涛胜, 黄茜琳, 等. 熔盐电解法制备铝钪中间合金研究进展. 材料导报, 2018, 32(21):3768 doi: 10.11896/j.issn.1005-023X.2018.21.013

    Li L X, Wang T S, Huang X L, et al. Research progress on the preparation of Al–Sc master alloy by molten salt electrolysis method. Mater Rev, 2018, 32(21): 3768 doi: 10.11896/j.issn.1005-023X.2018.21.013
    [7] 张城, 薛济来, 刘轩, 等. 基于霍尔—埃鲁特电解法制备铝合金技术研究进展. 工程科学学报, 2019, 41(7):835

    Zhang C, Xue J L, Liu X, et al. Production of aluminum alloys in electrolysis cells based on Hall-Héroult process: a review. Chin J Eng, 2019, 41(7): 835
    [8] 郭瑞, 曹文亮, 翟秀静, 等. 熔盐电解法制备Al–Sc应用合金的工艺研究. 稀有金属, 2008, 32(5):645 doi: 10.3969/j.issn.0258-7076.2008.05.021

    Guo R, Cao W L, Zhai X J, et al. Preparation of Al–Sc application alloys by molten salt electrolysis method. Chin J Rare Met, 2008, 32(5): 645 doi: 10.3969/j.issn.0258-7076.2008.05.021
    [9] Harata M, Nakamura T, Yakushiji H, et al. Production of scandium and Al–Sc alloy by metallothermic reduction. Miner Process Extract Metall IMM Trans Sect C, 2008, 117(2): 95
    [10] Liu Q C, Xue J L, Zhu J, et al. Processing Al–Sc alloys at liquid aluminum cathode in KF-AlF3 molten salt. ECS Trans, 2013, 50(11): 483 doi: 10.1149/05011.0483ecst
    [11] Shtefanyuk Y, Mann V, Pingin V, et al. Production of Al–Sc alloy by electrolysis of cryolite-scandium oxide melts // Light Metals 2015. New Jersey: John Wiley & Sons, Inc., 2015: 589
    [12] Tian Z L, Lai Y Q, Zhang K, et al. Preliminary study on preparation of Al–Sc master alloy in Na3AlF6–K3AlF6–AlF3 melt // 7th International Symposium on High-Temperature Metallurgical Processing. New Jersey: John Wiley & Sons, Inc., 2016: 157
    [13] Wang Z J, Guan C Y, Liu Q C, et al. Formation of intermetallic phases in Al–Sc alloys prepared by molten salt electrolysis at elevated temperatures // 6th International Symposium on High-Temperature Metallurgical Processing. New Jersey: John Wiley & Sons, Inc., 2015: 215
    [14] Liu X, Xue J L, Guo Z C, et al. Segregation behaviors of Sc and unique primary Al3Sc in Al–Sc alloys prepared by molten salt electrolysis. J Mater Sci Technol, 2019, 35(7): 1422 doi: 10.1016/j.jmst.2019.02.002
    [15] Liu X, Guo Z C, Xue J L, et al. Effects of synergetic ultrasound on the Sc yield and primary Al3Sc in the Al–Sc alloy prepared by the molten salts electrolysis. Ultrason Sonochem, 2019, 52: 33 doi: 10.1016/j.ultsonch.2018.09.009
    [16] Guo Z C, Liu X, Xue J L. Fabrication of Al-Si-Sc alloy bearing AlSi2Sc2 phase using ultrasonically assisted molten salt electrolysis. J Alloys Compd, 2019, 797: 883 doi: 10.1016/j.jallcom.2019.05.133
    [17] 郭志超, 刘轩, 薛济来, 等. 超声对熔盐电解法制备Al–7Si–Sc合金组织的影响. 工程科学学报, 2019, 41(9):1135

    Guo Z C, Liu X, Xue J L, et al. Effects of ultrasound on the microstructure of Al–7Si–Sc alloy prepared via molten salt electrolysis. Chin J Eng, 2019, 41(9): 1135
    [18] Liu X, Guo Z C, Xue J L, et al. Microstructures and mechanical properties of the Al–Cu–Sc alloys prepared by ultrasound-assisted molten salt electrolysis. J Alloys Compd, 2020, 818: 152870 doi: 10.1016/j.jallcom.2019.152870
    [19] Raghavan V. Phase diagram updates and evaluations of the Al–Fe–Ta, Al–Ge–Ni, Al–Li–Zn, Al–Sc–Si and Al–Ta–Ti systems. J Phase Equilib Diff, 2013, 34(4): 328 doi: 10.1007/s11669-013-0239-9
    [20] Pandee P, Gourlay C M, Belyakov S A, et al. AlSi2Sc2 intermetallic formation in Al–7Si–0.3Mg–xSc alloys and their effects on as-cast properties. J Alloys Compd, 2018, 731: 1159 doi: 10.1016/j.jallcom.2017.10.125
    [21] Bo H, Liu L B, Jin Z P. Thermodynamic analysis of Al–Sc, Cu–Sc and Al–Cu–Sc system. J Alloys Compd, 2010, 490(1-2): 318 doi: 10.1016/j.jallcom.2009.10.003
    [22] Raghavan V. Al–Cu–Sc (Aluminum-Copper-Scandium). J Phase Equilib Diff, 2010, 31(6): 554 doi: 10.1007/s11669-010-9771-z
    [23] 戴永年. 二元合金相图集. 北京: 科学出版社, 2009

    Dai Y N. Binary Alloys Phase Diagrams. Beijing: Science Press, 2009
    [24] Liu X, Zhang C, Zhang Z Q, et al. The role of ultrasound in hydrogen removal and microstructure refinement by ultrasonic argon degassing process. Ultrason Sonochem, 2017, 38: 455 doi: 10.1016/j.ultsonch.2017.03.041
    [25] Liu X, Xue J L, Zhao Q, et al. Effects of radiator shapes on the bubble diving and dispersion of ultrasonic argon process. Ultrason Sonochem, 2018, 41: 600 doi: 10.1016/j.ultsonch.2017.10.026
    [26] 徐婷, 张立华, 李瑞卿, 等. 铝合金大铸锭超声半连铸多场耦合的数值模拟与实验研究. 工程科学学报, 2016, 38(9):1270

    Xu T, Zhang L H, Li R Q, et al. Numerical simulation and experimental study of multi-field coupling for semi-continuous casting of large-scale aluminum ingots with ultrasonic treatment. Chin J Eng, 2016, 38(9): 1270
    [27] 商兵, 蒋日鹏, 李晓谦, 等. 超声外场对不同温控状态下ZL205A铝合金凝固规律的影响. 工程科学学报, 2019, 41(8):1007

    Shang B, Jiang R P, Li X Q, et al. Effect of ultrasonic outfield on solidification rules of ZL205A aluminum alloy under different temperature-control states. Chin J Eng, 2019, 41(8): 1007
    [28] 钟贞涛, 李瑞卿, 李晓谦, 等. 超声处理对2219大规格铝锭微观组织与宏观偏析的影响. 工程科学学报, 2017, 39(9):1347

    Zhong Z T, Li R Q, Li X Q, et al. Effect of ultrasonication on the microstructure and macrosegregation of a large 2219 aluminum ingot. Chin J Eng, 2017, 39(9): 1347
    [29] Liu X, Zhang J F, Li H Y, et al. Electrical resistivity behaviors of liquid Pb–Sn binary alloy in the presence of ultrasonic field. Ultrasonics, 2015, 55: 6 doi: 10.1016/j.ultras.2014.07.008
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  • 收稿日期:  2019-11-28
  • 刊出日期:  2020-11-25

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