Patent ID: 6962673

Claim:
A heat-resistant, creep-resistant aluminum alloy consisting of at least 10 mass % and not more than 30 mass % of silicon, at least 3 mass % and not more than 5 mass % in total of at least one element selected from the group consisting of iron and nickel, at least 1 mass % and not more than 6 mass % of at least one rare earth element in total and at least 1 mass % and not more than 3 mass % of zirconium with the rest consisting of aluminum and unavoidable impurities, and wherein the mean crystal grain size of silicon is not more than 2 μm, the mean grain size of compounds other than said silicon is not more than 1 μm, and the mean crystal grain size of an aluminum matrix is at least 0.2 μm and not more than 2 μm.