Paper Title:
The Effects of Al-Ca Compounds on Grain Refinement of Mg-Ca Alloys
  Abstract

In the present work, Al-Ca metallic compound was prepared in Mg-Ca alloys and the effects of Al-Ca metallic compound and different Al/Ca values on the grain refinement of Mg-Ca alloys were investigated by scanning electron microscopy and X-ray diffraction, and the mechanism of grain refinement of Mg-Ca alloys was discussed. The results showed that the grain size of Mg-0.5Ca alloy was obviously reduced from 550μm to 230μm due to the addition of Al. Al2Ca phase existed in these alloys and its morphology evolved from granular to rod-like. It is regarded as the main factor for the grain refinement.

  Info
Periodical
Edited by
Yafang Han, Fusheng Pan, Jianmao Tang, Chungen Zhou
Pages
348-354
DOI
10.4028/www.scientific.net/MSF.686.348
Citation
S. T. Xiong, F. S. Pan, B. Jiang, X. K. Li, "The Effects of Al-Ca Compounds on Grain Refinement of Mg-Ca Alloys", Materials Science Forum, Vol. 686, pp. 348-354, 2011
Online since
June 2011
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