| 简介 |
The present invention relates magnesium-aluminum based alloys having a small grain size and to a method of their production. The alloys are particularly useful in casting applications. The alloys comprise a grain refiner, the grain refiner having the chemical formula : Mg100-x-y-z Al x C y R z wherein R is an element selected from the group consisting of silicon, calcium, strontium or a rare earth element, x is from 10 to 60 At.%, y is from 5 to 50 At.%, and z is from 0 to 20 At.%, provided that x+y+z is less than 100 At.%. |
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