Abstract
Nickel-chromium and, to a lesser extent, cobalt-chromium alloys are the major class of materials used for the high temperature components of aircraft, marine, and land-based power systems and are also utilized in applications, such as hot-working tools and dies. The successful application of these alloys, now commonly termed ‘superalloys’, is due to their high, long-time creep strength and stability at elevated temperatures combined with their outstanding resistance to corrosion (often with protective coatings) in the aggressive environments encountered during service.
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