Grain refining agent for cast aluminum or magnesium products

Details Grain refining agent for cast aluminum or magnesium products Grain refining agent for cast aluminum or magnesium products

B - Operations, Transporting

22

D

B22D 27/20 (2006.01) C01B 31/30 (2006.01) C01B 35/04 (2006.01) C22C 1/02 (2006.01) C22C 1/03 (2006.01) C22C 21/00 (2006.01) C22C 23/00 (2006.01)

Patent

CA 2327950

The invention relates to a grain refining agent for cast aluminum or magnesium products, comprising particles having an average particle size of 0.1 to 30 µm and each formed of an agglomerate of grains with each grain comprising a nanocrystal of a transition metal boride or carbide of the formula: Me a X b (I) wherein Me is a transition metal, X is boron or carbon, a ranges from 1 to 10 and b ranges from 1 to 20. The grain refining agent according to the invention does not require to be formed into a master alloy prior to being added to the molten aluminum or magnesium to be cast.

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