Turbine component, gas turbine engine, method for manufacturing turbine component, surface processing method, vane component, metal component, and steam turbine engine

A component of a turbine engine, comprising:

• a main body having a portion to be processed;
• a base coating coated on the portion;
• an intermediate coating coated on the base coating, the intermediate coating including one or more filler materials selected from the group consisting of SiC and MoSi2;
• and
• a protective coating coated on the base coating and the intermediate substance, the protective coating including one or more protective materials selected from the group consisting of oxide ceramics, cubic BN, and oxidation-resistant metals, and being formed by processing the portion as a workpiece of an electric spark machine with a tool electrode.

A component of a turbine engine, comprising:

• a main body having a portion to be processed;
• a base coating coated on the portion;
• a protective coating coated on the base coating and the intermediate substance, the protective coating including one or more protective materials selected from the group consisting of oxide ceramics, cubic BN, and oxidation-resistant metals, and being formed by processing the portion as a workpiece of an electric spark machine with a tool electrode;
• and
• a filler including amorphous SiO2 filled in pores of the protective coating.

A method for production of a surface-treated component of a turbine engine, comprising:

• forming a base coating on a portion of an untreated component by processing the portion as a workpiece of an electric spark machine with a tool electrode of an oxidation-resistant metal;
• forming an intermediate coating coated on the base coating, the intermediate coating including one or more filler materials selected from the group consisting of SiC and MoSi2, the intermediate coating being formed by any process selected from the group consisting of processing the portion as a workpiece of an electric spark machine with a tool electrode of Si in a liquid including alkane hydrocarbons, and processing the portion as a work piece of an electric spark machine with a tool electrode of one or more filler materials selected from the group consisting of SiC and MoSi2;
• and
• forming a protective coating coated on the base coating and the intermediate substance by processing the base coating and the intermediate substance as a workpiece of an electric spark machine with a tool electrode of one or more protective materials selected from the group consisting of oxide ceramics, cubic BN, and oxidation-resistant metals.

A method for production of a surface-treated component of a turbine engine, comprising:

• forming a base coating on a portion of an untreated component by processing the portion as a workpiece of an electric spark machine with a tool electrode of an oxidation-resistant metal;
• forming a protective coating coated on the base coating and the intermediate substance by processing the base coating and the intermediate substance as a workpiece of an electric spark machine with a tool electrode of one or more protective materials selected from the group consisting of oxide ceramics, cubic BN, and oxidation-resistant metals;
• and
• closing pores of the protective coating by filling a powder of SiO2 or MoSi2 into the pores and heating the portion enough to change the powder into amorphous SiO2.