Process for grain refinement of aluminium casting alloys, in...

Details Process for grain refinement of aluminium casting alloys, in... Process for grain refinement of aluminium casting alloys, in...

C - Chemistry, Metallurgy

22

B

C22B 21/06 (2006.01) C22C 1/03 (2006.01) C22C 21/04 (2006.01)

Patent

CA 2080888

For the grain refinement of aluminium casting alloys, in particular aluminium/silicon casting alloys, gallium phosphide and/or indium phosphide are/is added to the melt, optionally in addition to further grain-refine- ment and/or modification additions. The addition of gallium phosphide and/ox indium phosphide results in a good grain refinement with low shrink-hole tendency and does not have an adverse effect on modification processes.

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