High temperature equipment
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsTaiji Torigoe, Hisataka Kawai, Yukiko Nishiura, Koji Takahashi, Katsuhiko Abe
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Abstract
Provided is high temperature equipment, such as gas turbine high temperature portion, usable in high temperature corrosion environment due to corrosive components and in erosion environment due to flying particles. Coating layer (2) in which Cr3C2 is finely dispersed in matrix MCrAlY, where weight ratio of MCrAlY/Cr3C2 is 1/1 to 3/1, is formed on base material (1) as sprayed coating and then diffusion heat treatment is added.
Claims4
A high temperature equipment having a corrosion resistant and erosion resistant coating formed thereon, wherein said coating is composed of a coating layer consisting essentially of Cr3C2 dispersed in MCrAlY formed by a sprayed coating of a mixed powder of MCrAlY powder and Cr3C2 powder, wherein a weight ratio of MCrAlY/Cr3C2 in said coating layer is more than 1/1 to 3/1.
A high temperature equipment having a corrosion resistant and erosion resistant coating formed thereon, wherein said coating is composed of a coating layer consisting of Cr3C2 dispersed in MCrAlY formed by a sprayed coating of a mixed powder of MCrAlY powder and Cr3C2 powder, wherein a weight ratio of MCrAlY/Cr3C2 in said coating layer is more than 1/1 to 3/1.
Dependencies are inferred from the claim text.