Turbomachine component with surface repair

A turbomachine wheel comprising:

• a rotatable body mounted circumferentially on a turbomachine shaft, wherein the turbomachine shaft passes through an aperture of the rotatable body oriented substantially axially relative to an axis of rotation of the rotatable body with the turbomachine shaft, and wherein the rotatable body is configured to support a set of blade components;
• and
• a flange coupled to and in direct axial contact with the rotatable body, the flange including:
• an aperture oriented substantially axially relative to the axis of rotation of the rotatable body, wherein the turbomachine shaft passes through the aperture of the flange;
• a surface that extends axially relative to the axis of rotation of the rotatable body, and contacting an axially aligned surface during operation of the turbomachine wheel;
• and
• at least one burnishing indentation formed within the surface of the flange, wherein a surface roughness of the flange along the at least one burnishing indentation is less than a surface roughness of a remainder of the turbomachine wheel, and wherein a compressive stress of the surface of the flange is greater than a compressive stress of the remainder of the flange.

A turbomachine comprising:

• a combustor;
• a compressor section in fluid communication with the combustor;
• a plurality of fuel nozzles in fluid communication with the combustor;
• a turbine section in fluid communication with the combustor;
• a shaft extending through each of the compressor section and the turbine section;
• and
• a turbine wheel mounted on the shaft and configured to hold a plurality of blades thereon, the turbine wheel including:
• a rotatable body having an aperture oriented substantially axially relative to an axis of rotation of the rotatable body, such that the shaft passes through the aperture of the rotatable body, wherein the rotatable body is configured to support the plurality of blades;
• and
• a first flange coupled to and in direct axial contact with the rotatable body, the first flange including:
• an aperture oriented substantially axially relative to the axis of rotation of the rotatable body, wherein the shaft passes through the aperture of the first flange;
• a surface that extends axially relative to the axis of rotation of the rotatable body, and contacting an axially aligned surface during operation of the turbine wheel;
• and
• at least one burnishing indentation formed within the surface of the first flange, wherein a surface roughness of the flange along the at least one burnishing indentation is less than a compressive stress of a remainder of the turbomachine wheel, and wherein a compressive stress of the surface of the flange is greater than a compressive stress of the remainder of the first flange.