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Effects of Casting Speed on Thin Gauge Foil Surface Quality of 8079 Aluminum Alloy Produced by Twin Roll Casting Method

  • A. Ulas MalciogluEmail author
  • Cisem Dogan
  • Canan Inel
  • Ceren Gode
Technical Paper

Abstract

In twin roll casting method, casted strips exhibit centerline segregation due to solidification kinetics. Casting parameters have an essential impact on aluminum’s microstructural properties as segregations. Therefore, these parameters have unfavorable effects on strip and foil products. Moreover, in foil products, pinhole surface defects do exist and reveal themselves as undesirable quality problems. In the present study, 8079 aluminum alloys were produced by twin roll casting method at different casting speeds. Diversified homogenization annealing processes were applied in laboratories for indicating optimum temperature leading to microstructural alterations. In order to analyze the influence of casting speed on foil products, microstructural investigations were accomplished on as-cast specimens and homogenized samples with optical microscope and scanning electron microscope. EDS and XRD analysis were conducted to analyze intermetallic structure inside 8079 alloy. In addition, mechanical tests were carried out for indicating the required temper designation for foil product. Scanning electron microscope analysis was performed on the final product surfaces of thin gauge foil in order to characterize the pinhole surface defect.

Keywords

8079 Casting speed Centerline segregation Aluminum foil 

Notes

References

  1. 1.
    Keles O, and Dundar M, Journal of Materials Processing Technology 186 (2007) 125.CrossRefGoogle Scholar
  2. 2.
    Lentz M, Laptyeva G, and Engler O, Journal of Alloys and Compounds 660 (2016) 276.CrossRefGoogle Scholar
  3. 3.
    Sun K M, Li L, Chen S D, Xu G M, Chen G, Misra R D K, and Zhang G, Materials Letters 190 (2017) 205.CrossRefGoogle Scholar
  4. 4.
    Liu W C, Zhai T, and Morris J G, Material Science and Engineering: A 358 (2003) 84.CrossRefGoogle Scholar
  5. 5.
    Işıksaçan C, Günyüz M, Birbaşar O, Konya C, and Dündar M, Materials Science Forum 794796 (2014) 181.Google Scholar
  6. 6.
    Zhu H, Ghosh A K, and Maruyama K, Materials Science and Engineering: A 419 (2006) 115.CrossRefGoogle Scholar
  7. 7.
    Kumar S, Babu N H, Scamans G M, Fan Z, and O’Reilly K A Q, Metallurgical and Materials Transactions A 45 (2014) 2842.CrossRefGoogle Scholar
  8. 8.
    Schmidt C W, Mortensen D, and Karhausen K, Light Metals 2017 (2017) 811.Google Scholar
  9. 9.
    Hasenclever J, in Proceedings of the 9th International Conference on Aluminium Alloys. (2004), p 867.Google Scholar
  10. 10.
    Delijic K, Asanovic V, and Radonjic D, Materials Science Forum 555 (2007) 559.CrossRefGoogle Scholar
  11. 11.
    Birol Y, Engineering Failure Analysis 28 (2013) 82.CrossRefGoogle Scholar
  12. 12.
    Sanders R E, JOM 64 (2012) 291.CrossRefGoogle Scholar
  13. 13.
    Wang H, Zhou L, Zhang Y, Cai Y, and Zhang J, Journal of Materials Processing Technology 233 (2016), 186.CrossRefGoogle Scholar
  14. 14.
    Lv Z, Du F, An Z, Huang H, Xu Z, and Sun J, Journal of Alloys and Compounds 643 (2015) 270.CrossRefGoogle Scholar
  15. 15.
    Kumar R, Gupta A, Kumar A, Chouhan R N, and Khatirkar R K, Journal of Alloys and Compounds 742 (2018) 369.CrossRefGoogle Scholar
  16. 16.
    Wang J, Zhou X, Thompson G E, Hunter J A, and Yuan Y, Metallurgical and Materials Transactions 46A (2015) 2688.CrossRefGoogle Scholar
  17. 17.
    Merchant H D, Morris J G, and Hodgson D S, Mater. Charact. 25 (1990) 339.CrossRefGoogle Scholar
  18. 18.
    Liu J T, Banovic S W, Fields R J, and Morris J G, Metallurgical. Mater. Trans. A 37 (2006) 1887.CrossRefGoogle Scholar
  19. 19.
    Birol Y, Journal of Materials Processing Technology 202 (2008) 564.CrossRefGoogle Scholar
  20. 20.
    Polmear, StJohn D, Nie J, and Qian M, Light Alloys: Metallurgy of the Light Metals, 5th Edn. (Elsevier, 2017), p 246.Google Scholar
  21. 21.
    Shakiba M, Parson N, and Chen X G, Materials Science & Engineering A 619 (2014) 180.CrossRefGoogle Scholar
  22. 22.
    Işıksaçan C, Meydanoğlu O, Akdoğan V U, Alper G, and Beyhan B, Light Metals 2015 (2015) 1219.Google Scholar
  23. 23.
    Sanders R E, Hollinshead P A, Simielli E A, Materials Forum 28 (2004) 53.Google Scholar

Copyright information

© The Indian Institute of Metals - IIM 2019

Authors and Affiliations

  • A. Ulas Malcioglu
    • 1
    Email author
  • Cisem Dogan
    • 1
  • Canan Inel
    • 1
  • Ceren Gode
    • 2
  1. 1.ASAS Aluminyum San. ve Tic. A.S.SakaryaTurkey
  2. 2.School of Denizli Vocational Technology, Program of MachinePamukkale UniversityDenizliTurkey

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