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Effects of rotating magnetic and ultrasonic fields on the microstructure and mechanical properties of Al-8 wt.%Si alloy

  • Yubo Zhang , Hang Chen , Jinchuan Jie and Tingju Li
Published/Copyright: November 17, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 11

Abstract

The application of physical fields is currently a common method to improve the solidification structure of Al alloys. In this study, rotating magnetic field (RMF) and power ultrasonic field (USF) were applied during the solidification process of Al-8 wt.%Si alloy. The experimental results have been compared to those of conventional casting and have verified that the alloys processed under individual RMF or USF exhibit obvious refinement in their solidification structure as well as an enhancement in the mechanical properties. However, the refinement under RMF is not fully effective, while the ultrasonically treated region is inadequate. For the case of the compound fields, it could be furthermore observed that these improvements become more pronounced. Owing to the advantages of both RMF and USF, RMF enlarges the ultrasonic treated region, and USF improves the refinement effect of RMF as well.

Keywords: Aluminum alloys; Rotating magnetic field; Ultrasonic field; Solidification microstructure; Mechanical properties
* Professor Tingju Li, PhD, School of Material 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: 2013-12-26
Accepted: 2014-05-23
Published Online: 2014-11-17
Published in Print: 2014-11-10

© 2014, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111121
Keywords for this article
Aluminum alloys; Rotating magnetic field; Ultrasonic field; Solidification microstructure; Mechanical properties

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Thermodynamic description of the Ta–W–Zr system
  5. Interrelationships of defects, nitride modification and excess nitrogen in nitrided Fe-4.75 at.% Al alloy
  6. Effects of rotating magnetic and ultrasonic fields on the microstructure and mechanical properties of Al-8 wt.%Si alloy
  7. Microstructural control of Ti-46Al-7Nb-0.7Cr-0.2Ni-0.1Si alloy by heat treatment
  8. Structure and mechanical properties of Zn-(5–25) Al alloys
  9. Hot ductility behavior of near-alpha titanium alloy IMI834
  10. The effect of nano-SiO2 on magnetic and dielectric properties of Li–Zn ferrite
  11. Production of aluminum nano-composite reinforced by tungsten carbide particles via mechanical milling and subsequent hot pressing
  12. Short Communications
  13. Microstructure and texture evolution of Mg–Li alloy during rolling
  14. Microstructure and mechanical properties of Ti2AlC-reinforced TiAl composites
  15. Thermal fatigue behavior of cast superalloy Inconel 713LC
  16. Study of structural, morphological and optical properties of S and Cu co-doped SnO2 nanostructured thin films prepared by spray pyrolysis
  17. Synthesis and characterization of zirconium nitride coatings by cathodic arc sputtering technique
  18. Plasmon enhanced scattering and fluorescence in amorphous matrix
  19. Novel preparation of a porous composite insulating scaffold from forsterite and sodium carbonate media
  20. People
  21. Werner Mader, 65 years
  22. DGM News
  23. DGM News
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