Patent ID: 7666352
Filing Date: 2010-02-23
Classification: C22C,C22F

Abstract:
1. An iridium-based alloy with high heat resistance and high strength comprising: in terms of mass proportion, 0.1 to 9.0% of Al, 1.0 to 45% of W, and Ir as the remainder with inevitable impurities; and a metallic structure having a precipitated L1 2 -type intermetallic compound of Ir 3 (Al,W) in terms of atom ratio, in a component system containing 0.1 to 1.5% of Al and having a precipitated L1 2 -type intermetallic compound of Ir 3 (Al,W) in terms of atom ratio and a B2 type intermetallic compound of Ir(Al,W) in terms of atom ratio, in a component system containing greater than 1.5% to 9.0% or less of Al.