ALUMINUM ALLOY CASTING MATERIAL, METHOD FOR PRODUCTION OF THE ALUMINUM ALLOY CASTING MATERIAL, ALUMINUM ALLOY MATERIAL, AND METHOD FOR PRODUCTION OF ALUMINUM ALLOY MATERIAL

摘要

Disclosed are: an aluminum alloy casting material produced by casting a molten product of an aluminum alloy; an aluminum alloy material produced by at least heating the aluminum alloy casting material; and a method for producing the aluminum alloy casting material or the aluminum alloy material. In the production of the aluminum alloy casting material, firstly, an aluminum alloy is molten at a predetermined temperature to produce a molten product (a melting step), wherein the aluminum alloy contains Fe in an amount of 0.8 to 5 mass% and Ti in an amount of 0.15 to 1 mass% and further contains a third constituent element such as Zr in a specified amount, with the remainder being Al and unavoidable impurities. Subsequently, the molten product is casted on a die into a plate-like shape while cooling to a temperature lower than the solidus temperature of the aluminum alloy by at least 10°C at a cooling rate of equal to or greater than 150°C/sec and less than 10000°C/sec (a casting step).