Coating composition having good corrosion and oxidation resistance

摘要

A coating composition comprising an alloy having the formula RCrAlR'R'' wherein R is nickel, cobalt or the like; R' is yttrium or hafnium and R'' is tantalum, rhenium and/or platinum, preferably mixed with an oxide dispersion such as alumina, to provide an improved class of coatings suitable for operating in high temperature oxidizing environments.