High-temperature alloy based on alloyed gamma-titanium aluminide and use of this alloy

摘要

The alloy is based on alloyed gamma-titanium aluminide. It contains the following alloy constituents, in atom per cent: titanium 42 - 52 aluminium 45 - 50 chromium 1 - 3 niobium 1 - 5 tantalum, rhenium and/or tungsten 1 - 5. The alloy is characterised at high temperatures (typically 750@C) by a high creep resistance and by good strength properties. It is preferably used as material for the manufacture of blades for gas turbines and turbochargers. <IMAGE>