초록 ▼

An improved high temperature fatigue resistant coating for nickel and cobalt base superalloys having good oxidation and sulfidation resistance. The coating comprises by weight, 8-30% Co, 8-30% Cr, 5-20% Al, 10-60% Ni and 0.05-1.0% of a reactive metal selected from the group of Y, Sc, La and mixtures

An improved high temperature fatigue resistant coating for nickel and cobalt base superalloys having good oxidation and sulfidation resistance. The coating comprises by weight, 8-30% Co, 8-30% Cr, 5-20% Al, 10-60% Ni and 0.05-1.0% of a reactive metal selected from the group of Y, Sc, La and mixtures thereof, balance selected from the group consisting of Pt, Rh, and mixtures thereof, the (Pt+Rh) content being at least 13%.

대표청구항 ▼

A coated article consisting of a superalloy substrate having a protective coating on at least part of the substrate, said coating consisting essentially of 8-30% Cr, 5-20% Al, 10-60% Ni, 8-30% Co, from 0.05-1.0% of a material selected from the group consisting of Y, Sc, and La, and mixtures thereof,

A coated article consisting of a superalloy substrate having a protective coating on at least part of the substrate, said coating consisting essentially of 8-30% Cr, 5-20% Al, 10-60% Ni, 8-30% Co, from 0.05-1.0% of a material selected from the group consisting of Y, Sc, and La, and mixtures thereof, balance Pt, Rh and mixtures thereof in an amount of at least 13%.