Process for preparing an oxide dispersion strengthened high temperature alloy

摘要

This invention concerns oxide dispersion strengthened high temperature alloy compositions which contain as the dispersoid one or more of the alumina-yttria mixed-oxides Al2O3.2Y2O3, Al2O3.Y2O3, and 5Al2O3.3Y2O3. The alloy also contains iron, nickel or cobalt as the major constituent and 0.3 wt.% to 10 wt.% aluminium. It may also contain up to 3 wt.% titanium and up to 30 wt.% chromium.