method of improving mechanical properties aluminium alloy containing sc and zr addition is that alloy subjected to previously tru00f3jetapowemu przesycaniu, after which each stage stop cooling water temperature of zero, is subjected to first process passing by zagi boost channel at room temperature, and then the surface kulowania buckshot round steel.as a result of this way is aluminium alloy with the addition of sc and zr, which is via a gradient layer strengthening of surface hardness hv 220 hv 245, core and edge 445 mpa and yield point 415 mpa.
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