An improved method for optimizing the grain refinement of aluminum alloys

摘要

(57) [Abstract] The present invention is a method of controlling the grain refinement of aluminum alloys certain. particle size on grain growth index GGI different value is determined using the casting method. GGI is represented by the sum of m is multiplied by the concentration for all elements of the aluminum alloy of the (k-1) value. The values ​​for some alloys if it is compared with the known relationships between the particle diameter and the (k-1) value m, the composition of the molten alloy to the optimal particle size by adding the particle size effect material be revised. The process is further improved by optimizing the amount of nucleation agent.