Ti-Al BASED ALLOY HAVING EXCELLENT FOREIGN MATTER IMPACT RESISTANCE, AND TURBINE PART

摘要

PROBLEM TO BE SOLVED: To provide a Ti-Al based alloy which has excellent foreign matter impact resistance.;SOLUTION: The Ti-Al based alloy contains, by atom, 44 to 50% Al, 0.5 to 5.0% V and 0.1 to 2.0% Zr or Hf, and the balance Ti with inevitable impurities. The Ti-Al based alloy has excellent foreign matter impact resistance, lightness in weight and heat resistance, and is preferably used to parts for a turbine, particularly, to a turbine wheel.;COPYRIGHT: (C)2004,JPO