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Journal of Materials Science

, Volume 43, Issue 3, pp 980–984 | Cite as

Effect of melt superheating treatment on the cast microstructure of Mg–1.5Si–1Zn alloy

  • Z. H. Gu
  • H. Y. Wang
  • N. Zheng
  • M. Zha
  • L. L. Jiang
  • W. Wang
  • Q. C. Jiang
Article

Abstract

The effect of melt superheating treatment on the microstructure of Mg–1.5Si–1Zn alloy is investigated in this article. The microstructure of samples poured into sand and metal molds shows that the primary Mg2Si is considerably refined in size when the melt is superheated from 750 to 900 °C. However, its polyhedral morphology does not change. In addition, also the size of eutectic Mg2Si phase obviously decreases, but the morphology still exhibits Chinese script type. Meanwhile, it is concluded that the reduction of the heredity plays an important role in the grain refinement of Mg–1.5Si–1Zn alloy.

Keywords

Differential Thermal Analysis Metal Mold Mg2Si Particle Differential Thermal Analysis Experiment Primary Mg2Si 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This research is sponsored by The National Natural Science Foundation of China (No. 50501010) and The Project 985-Automotive Engineering of Jilin University.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Z. H. Gu
    • 1
  • H. Y. Wang
    • 1
  • N. Zheng
    • 1
  • M. Zha
    • 1
  • L. L. Jiang
    • 1
  • W. Wang
    • 1
  • Q. C. Jiang
    • 1
  1. 1.Key Laboratory of Automobile Materials of Ministry of Education and Department of Materials Science and EngineeringJilin UniversityChangchunP.R. China

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