Startseite Effect of coupled annular electromagnetic stirring and intercooling on the microstructures, macrosegregation and properties of large-sized 2219 aluminum alloy billets
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Effect of coupled annular electromagnetic stirring and intercooling on the microstructures, macrosegregation and properties of large-sized 2219 aluminum alloy billets

  • Yang Qiu , Zhifeng Zhang , Yajun Luo , Mingwei Gao , Bao Li und Chunsheng Chen
Veröffentlicht/Copyright: 28. April 2018
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 109 Heft 5

Abstract

Coarse microstructures and severe macrosegregation always occur in large-sized billets prepared by normal direct chill casting, and cannot be eliminated during subsequent deformation or high temperature annealing. This study proposes a new melt treatment method coupled to annular electromagnetic stirring and intercooling, and applies it to direct chill casting of large-sized 2219 aluminum alloy billets. Compared to the normal direct chill casting, the microstructure and second phase were refined and homogenized, and the macrosegregation of Cu was alleviated. Accordingly, the average tensile and yield strengths, elongation and hardness were significantly improved and remained relatively stable at different positions on the billet. Tensile fracture tests showed that annular electromagnetic stirring coupled with intercooling decreases the amount of porosity in the structure.

Keywords: Annular electromagnetic stirring; Intercooling; Large-sized 2219 aluminum alloy; Macrosegregation; Porosity
*Correspondence address, Professor Zhifeng Zhang, National Engineering and Technology Research Center for Nonferrous Metal Matrix Composite, General Research Institute for Nonferrous Metals, No. 11 Xingkedong Street, Beijing 101407, P.R. China, Tel.: +8613522900206, Fax: +8601062355099, E-mail:

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Received: 2017-08-23
Accepted: 2017-12-18
Published Online: 2018-04-28
Published in Print: 2018-05-15

© 2018, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Manufacturing of functionally graded metal matrix composite materials by segregation
  5. Indenter size effect in high-pressure torsion deformed Pd-based metallic glass
  6. Investigation of the effect of bath temperature on the bath–freeze lining interface temperature in the CuOx–FeOy–MgO–SiO2 system at copper metal saturation
  7. Decomposition of Al4O4C in the presence of C at high temperatures in vacuum
  8. Optical and magnetic properties of diluted magnetic semiconductor Zn0.95M0.05S nanorods prepared by a hydrothermal method
  9. Structural, magnetic and optical properties of Al-substituted nickel ferrite nanoparticles
  10. Effect of processing parameters on microstructural and mechanical properties of aluminum–SiO2 nanocomposites produced by spark plasma sintering
  11. Sn-bonded LaFe11.6Si1.4Hy magnetocaloric composites with a 3-d Ni-coating steel substrate formed by hot-pressing
  12. Effect of laser energy density on microstructures and mechanical properties of selective laser melted Ti-6Al-4V alloy
  13. Structure and corrosion resistance of titanium oxide layers produced on NiTi alloy in low-temperature plasma
  14. Severe shot peening of AISI 321 with 1 000 % and 1 300 % coverages: A comparative study on the surface nanocrystallization, phase transformation, sub-surface microcracks, and microhardness
  15. Abrasive wear resistance of modified X37CrMoV5-1 hot work tool steel after conventional and laser heat treatment
  16. Effect of coupled annular electromagnetic stirring and intercooling on the microstructures, macrosegregation and properties of large-sized 2219 aluminum alloy billets
  17. People
  18. Otmar Vöhringer on the occasion of his 80th birthday
  19. In Memory of Lasar Simhovich Shvindlerman (September 20th, 1935–March 3rd, 2018)
  20. In Memory of Prof. Dr.-Ing. Heinrich Wollenberger
  21. DGM News
  22. DGM News
https://doi.org/10.3139/146.111620
Schlagwörter für diesen Artikel
Annular electromagnetic stirring; Intercooling; Large-sized 2219 aluminum alloy; Macrosegregation; Porosity

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Manufacturing of functionally graded metal matrix composite materials by segregation
  5. Indenter size effect in high-pressure torsion deformed Pd-based metallic glass
  6. Investigation of the effect of bath temperature on the bath–freeze lining interface temperature in the CuOx–FeOy–MgO–SiO2 system at copper metal saturation
  7. Decomposition of Al4O4C in the presence of C at high temperatures in vacuum
  8. Optical and magnetic properties of diluted magnetic semiconductor Zn0.95M0.05S nanorods prepared by a hydrothermal method
  9. Structural, magnetic and optical properties of Al-substituted nickel ferrite nanoparticles
  10. Effect of processing parameters on microstructural and mechanical properties of aluminum–SiO2 nanocomposites produced by spark plasma sintering
  11. Sn-bonded LaFe11.6Si1.4Hy magnetocaloric composites with a 3-d Ni-coating steel substrate formed by hot-pressing
  12. Effect of laser energy density on microstructures and mechanical properties of selective laser melted Ti-6Al-4V alloy
  13. Structure and corrosion resistance of titanium oxide layers produced on NiTi alloy in low-temperature plasma
  14. Severe shot peening of AISI 321 with 1 000 % and 1 300 % coverages: A comparative study on the surface nanocrystallization, phase transformation, sub-surface microcracks, and microhardness
  15. Abrasive wear resistance of modified X37CrMoV5-1 hot work tool steel after conventional and laser heat treatment
  16. Effect of coupled annular electromagnetic stirring and intercooling on the microstructures, macrosegregation and properties of large-sized 2219 aluminum alloy billets
  17. People
  18. Otmar Vöhringer on the occasion of his 80th birthday
  19. In Memory of Lasar Simhovich Shvindlerman (September 20th, 1935–March 3rd, 2018)
  20. In Memory of Prof. Dr.-Ing. Heinrich Wollenberger
  21. DGM News
  22. DGM News
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