The role of solute in grain refinement of magnesium
作者： Y. C. Lee , A. K. Dahle , D. H. StJohn
DOI: 10.1007/BF02830349
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摘要: The effect of separate solute additions Al, Zr, Sr, Si, and Ca on grain size Mg has been investigated. Increasing the Al content in hypoeutectic Mg-Al alloys resulted a continuous reduction up to 5 wt pct reaching relatively constant for higher contents (above pct). Sr was investigated both low- high-Al magnesium alloys, it found that had significant refining low-Al containing but negligible Mg-9Al. Additions pure efficient refinement. refinement is mainly caused by their growth restriction effects, i.e., constitutional undercooling, during solidification, nucleant particles, either introduced with alloying or as secondary phases formed result these additions, may enhance A brief review included this article provide an update research field.
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