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Effect of intermediate frequency electromagnetic field on the solidification structure and mechanical properties of direct chill cast Al-8 wt.%Si alloy

  • Yubo Zhang , Jinchuan Jie , Hang Chen , Li Wu , Ying Fu and Tingju Li
Published/Copyright: May 8, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 5

Abstract

Direct chill (DC) casting is currently the most common casting practice employed in industry for Al alloys. In this study, an intermediate frequency electromagnetic (IFEM) field was applied during DC casting of Al-8 wt.%Si alloy. The results show that compared to conventional casting, the alloys processed under IFEM field exhibit superior refinement in the microstructure as well as enhancement of the mechanical properties. In addition, these improvements become more pronounced when the current is increased. The role of IFEM field in inducing forced convection, and the subsequent phenomena, such as achievement of a uniform temperature field, fragmentation of the developed dendrites and the promotion of their equiaxed growth during solidification, could be confirmed by experimental observations.

Keywords: Aluminum alloys; Direct chill casting; Intermediate frequency electromagnetic field; Solidification microstructure; Mechanical properties
* Correspondence address, Prof. Tingju Li, PhD, School of Materials Science and Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China, Tel.: +86 0411 84708940, Fax: +86 0411 84708940, E-mail:

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Received: 2013-09-27
Accepted: 2013-12-17
Published Online: 2014-05-08
Published in Print: 2014-05-13

© 2014, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111055
Keywords for this article
Aluminum alloys; Direct chill casting; Intermediate frequency electromagnetic field; Solidification microstructure; Mechanical properties

Articles in the same Issue

  1. Contents
  2. Contents
  3. Review
  4. Research trends in microwave dielectrics and factors affecting their properties: A review
  5. Original Contributions
  6. Efficiency and work performance of TiNi alloy undergoing B2 ↔ R martensitic transformation
  7. Fabrication of Gasar made from Cu-24 wt.% Mn alloy
  8. Effect of intermediate frequency electromagnetic field on the solidification structure and mechanical properties of direct chill cast Al-8 wt.%Si alloy
  9. Effect of Ni-based conversion coating and Ni–P electroless plating on the bonding process of pure Al and AZ31 alloy
  10. Effect of ball milling time on the synthesis of nanocrystalline merwinite via mechanical activation and heat treatment
  11. Structural and magnetic properties of Fe–Al2O3 soft magnetic composites prepared using the sol–gel method
  12. Improved dielectric performance of barium strontium titanate multilayered capacitor by means of pulsed laser deposition and slow injection sol–gel methods
  13. Effect of heat treatment on the slurry erosion resistance of high strength steel DP980
  14. Development of biomimetic gelatin–chitosan/hydroxyapatite nanocomposite via double diffusion method for biomedical applications
  15. Short Communications
  16. Effects of rolling rate on microstructure and mechanical properties of Mg sheets
  17. Effect of post-weld heat treatment on dissimilar friction stir welded AA6063 and A319 aluminium alloys
  18. Dielectric and magnetic properties of Ba0.8Sr0.2TiO3 – Y3Fe5O12 – YFeO3 composites
  19. Microwave-assisted modulated synthesis of zirconium-based metal–organic framework (Zr-MOF) for hydrogen storage applications
  20. DGM News
  21. DGM News
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