Surface treatment of turbomachinery

A method for turbomachine treatment, comprising:

• rotating a target surface of a component about a first axis of rotation, the component being mounted on a lathe chuck oriented substantially along the first axis of rotation, wherein the target surface of the component includes an exposed axial target surface oriented axially relative to the first axis of rotation, and shaped to matingly engage an adjacent component;
• positioning an axially-adjustable tool arm proximate an outer surface of the component, wherein the axially-adjustable tool arm is mechanically coupled to a lathe assembly and extends substantially in parallel with the first axis of rotation;
• rotating a burnishing surface of a burnishing roller about a second axis of rotation, wherein the second axis of rotation is substantially perpendicular with the first axis of rotation, and wherein the burnishing roller is adjustably connected to the axially-adjustable tool arm and extends radially inward from the axially-adjustable tool arm toward the first axis of rotation;
• and
• contacting the burnishing surface of the burnishing roller with the target surface of the component, during the rotating of the target surface and the rotating of the burnishing surface about the first axis of rotation, to yield a polished target surface having a greater specific surface area and a reduced surface roughness relative to a remainder of the component, and to impart a residual compressive stress to the component, wherein a frictional coefficient between the polished target surface and an adjacent component is greater than an initial frictional coefficient between the target surface and the adjacent component.