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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-e6f4ba58-1269-4607-8d62-9a8ce9ca54b7

Czasopismo

Archives of Metallurgy and Materials

Tytuł artykułu

Preparation of Twinned Dendrites of Al-Zn Alloy with High Zn Content

Autorzy Gao, K.  Song, W.  Fan, L.  Ding, Y.  Guo, X.  Zhang, R. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN Twinned dendrites in Al-Zn alloy with high Zn content (40% wt.%) were successfully prepared by directional solidification. At different directional solidification rates (1000 and 1500 μm/s), microstructures and growth orientation variations of Al twinned dendrite and non-twinned dendrite were characterized. By using the inverted trapezoidal graphite sleeve at 1000 μm/s, Al twinned dendrite were formed to developed feather crystal structures in longitudinal section. Its primary and secondary twinned dendrite were grew along [110] direction. Moreover the deviation angle between [110] direction of Al twinned dendrite and the heat flow direction was about 27.15°. While not using the inverted trapezoidal graphite sleeve at 1000 and 1500 μm/s, Al dendrite was the non-twinned dendrite and the twinned dendrite was not appeared. The experimental results showed that the higher temperature gradient, a certain pulling rate and convection environment were the formation conditions of twinned dendrites.
Słowa kluczowe
EN directional solidification   twinned dendrite   microstructure   growth orientation   deviation angle  
Wydawca Polish Academy of Sciences, Committee of Metallurgy, Institute of Metallurgy and Materials Science
Czasopismo Archives of Metallurgy and Materials
Rocznik 2018
Tom Vol. 63, iss. 4
Strony 1657--1662
Opis fizyczny Bibliogr. 19 poz., fot., rys., wzory
Twórcy
autor Gao, K.
  • Zhengzhou University of Aeronautics, Zhengzhou 450015, P.R. China, gaoka9222005@163.com
  • Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou 450015, P.R. China
autor Song, W.
  • Zhengzhou University of Aeronautics, Zhengzhou 450015, P.R. China
autor Fan, L.
  • Zhengzhou University of Aeronautics, Zhengzhou 450015, P.R. China
  • Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou 450015, P.R. China
autor Ding, Y.
  • Zhengzhou University of Aeronautics, Zhengzhou 450015, P.R. China
  • Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou 450015, P.R. China
autor Guo, X.
  • Zhengzhou University of Aeronautics, Zhengzhou 450015, P.R. China
  • Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou 450015, P.R. China
autor Zhang, R.
  • Zhengzhou University of Aeronautics, Zhengzhou 450015, P.R. China
  • Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou 450015, P.R. China
  • Zhengzhou University, Zhengzhou 450001, P.R. China
Bibliografia
[1] X. Li, Y. Fautrelle, A. Gagnoud, G. Cao, Y. Zhang, Z. Ren, High magnetic field induction of the formation of twinned dendrites during directional solidification of Al-4.5wt%Cu alloy, Phil. Mag. Lett. 94, 118-126 (2014).
[2] H. J. Wood, J. D. Hunt, P. V. Evans, Modelling the growth of feather crystals, Acta. Mater. 45, 569-574 (1997).
[3] M. A. Salgado-Ordorica, M. Rappaz, Twinned dendrite growth in binary aluminum alloys, Acta. Mater. 56, 5708-5718 (2008).
[4] G. Kurtuldu, P. Jarry, M. Rappaz, Influence of Cr on the nucleation of primary Al and formation of twinned dendrites in Al-Zn-Cr alloys: Can icosahedral solid clusters play a role, Acta. Mater. 61, 7098-7108 (2013).
[5] M. A. Salgado-Ordorica, P. Burdet, M. Cantoni, M. Rappaz, Study of the twinned dendrite tip shape II: Experimental assessment, Acta. Mater. 59, 5085-5091 (2011).
[6] M. A. Salgado-Ordorica, J. Valloton, M. Rappza, Study of twinned dendrite growth stability, Scripta. Mater, 61, 367-370 (2009).
[7] K. I. Dragnevski, R. F. Cochrane, A. M. Mullis, The solidification of undercooled melts via, twinned dendritic growth, Metall. Mater. Trans. A. 35, 3211-3220 (2004).
[8] M. A. Salgado-Ordorica, A. B. Phillion, M. Rappaz, Morphology and Growth Kinetic Advantage of Quenched Twinned Dendrites in Al-Zn Alloys, Metall. Mater. Trans. A. 44, 2699-2706 (2013).
[9] F. Gonzales, M. Rappaz, Dendrite growth directions in aluminum-zinc alloys, Metall. Mater. Trans. A. 37, 2797-2806 (2006).
[10] F. Gonzales, M. Rappaz, Grain Selection and Texture Evolution in Directionally Solidified Al-Zn Alloys, Metall. Mater. Trans. A. 39, 2148-2160 (2008).
[11] S. Yamada, M. Yoshimura, S. Sakata, T. Taishi, K. Hoshikawa, Colony structure in ce-doped Al2O3/YAG eutectic systems grown by vertical Bridgman technique, J. Cryst. Growth. 448, 1-5 (2016).
[12] A. Hübner, D. Strobusch, H. W. Lerner, The Twinned Crystal Structure of Zinc (II) Acetylacetonate Trimer, J. Chem. Crystallogr. 38, 953-957 (2008).
[13] S. Henry, M. Rappaz, P. Jarry, <110> dendrite growth in aluminium feathery grains, Metall. Mater. Trans. A. 29, 2807-2817 (1998).
[14] S. S. V. Tatiparti, F. Ebrahimi, Preferred orientation and shape of electrodeposited nanocrystalline Al-Mg alloy dendrites, Mater. Letter. 65, 1915-1918 (2011).
[15] K. Gao, S. M. Li, S. J. Song, H. Z. Fu, Influences of microstructure and orientation on fracture toughness of intermetallic phase Al2Cu-based alloy under directional solidification, Fatigue. Fract. Eng. M. 39, 511-520 (2016).
[16] E. Acer, E. Çadırlı, H. Erol, M. Gündüz, Effect of Growth Rate on the Microstructure and Microhardness in a Directionally Solidified Al-Zn-Mg Alloy, Metall. Mater. Trans. A. 47, 3040-3051 (2016).
[17] A. M. Mullis, Understanding the formation of twinned dendrites ('feather'grains). (Department of Engineering Materials University of Sheffield, 2007)
[18] A. N. Turchin, M. Zuijderwijk, J. Pool, D.G. Eskin, L. Katgerman, Feathery grain growth during solidification under forced flow conditions, Acta. Mater. 55, 3795-3801 (2007).
[19] P. C. Sharath, K. R. Udupa, G. V. P. Kumar, Effect of Multi Directional Forging on the Microstructure and Mechanical Properties of Zn-24 wt% Al-2 wt% Cu Alloy, T. Indian. I. Metals. 70, 1-8 (2017).
Uwagi
EN 1. This work was financially supported by the fund of the Henan Provincial Key Scientific Research Project (No.162102210241) and Henan Provincial Higher Education (No.17A430007).
PL 2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-e6f4ba58-1269-4607-8d62-9a8ce9ca54b7
Identyfikatory
DOI 10.24425/amm.2018.125090