Oxide dispersion-strengthened alloy having high strength at intermediate temperatures

摘要

Oxide dispersion-strengthened alloys containing 5 to 9% chromium, 5 to 7% aluminium, 5 to 9% tungsten, 1 to 3% molybdenum, 1 to 5% tantalum, 0 to 1.5% titanium, 0 to 10% cobalt, 1 to 4% rhenium, 0.1 to 2% yttrium oxide, small amounts of boron and zirconium as required, balance essentially nickel, display excellent lives to rupture under load at intermediate high temperatures of about 850 DEG C.