Patent ID: 8962163
Filing Date: 2015-02-24
Classification: C22C,C22F,C25D,F16D

Abstract:
1. An aluminum alloy component in which an anodic oxide film is formed on a surface of a base metal of an aluminum alloy, wherein the aluminum alloy consists of Fe: 0.5 to 2 mass %, Cu: 0.35 to 0.6 mass %, Mg: 0.35 to 1.3 mass %, Si: 0.2 to 1.3 mass %, Cr: 0.05 to 0.3 mass %, Mn: 0.01 to 0.3 mass %, Ti: 0.005 to 0.1 mass %, and a balance being Al and inevitable impurities, wherein Zn is controlled to be less than 0.25 mass %, and wherein Al—Fe crystals and Al—Fe—Si crystals having a maximum grain diameter of 30 μm or less exist in the anodic oxide film in a dispersed manner with an average center-to-center distance of 10 to 100 μm, and a percentage of a total occupied area of the Al—Fe crystals and Al—Fe—Si crystals in the anodic oxide film is 5.2% or more.