Method for producing steam turbine member
AssigneeFuji Electric Co., Ltd.
InventorsYuya Nakashima, Morio Chiwata, Susumu Ishimura, Yuta Fukuda
Life of this patent
Estimating the term…
Abstract
The present invention provides a method for producing a steam turbine member that is highly superior in smoothness. The present invention provides a method for producing a steam turbine member including a cladding layer forming step of forming a cladding layer from a powdered material containing a metal in a region of a base material in which corrosion easily occurs, and a surface heating step of heat-melting a surface of the cladding layer.
Claims10
A method for producing a steam turbine member, comprising:
- forming a cladding layer from a powder material containing a metal in a region of a base material in which corrosion easily occurs;
- and
- heat-melting an outermost surface of the cladding layer after forming the cladding layer.
A method for producing a steam turbine member, comprising:
- forming a cladding layer from a powder material containing a metal in a region of a base material in which corrosion easily occurs;
- and
- heat-melting a surface of the cladding layer, wherein
- the forming a cladding layer includes performing laser irradiation while spraying the powder material onto the base material, and
- the heat-melting a surface includes heat-melting by laser irradiation of a portion from the surface to a depth equal to or greater than the most frequent value of a particle size distribution of the powder material.
A steam turbine member comprising a corrosion resistant region in which a cladding layer is formed on a base material, wherein a portion from a surface of the cladding layer to a depth of 100 to 200 μm is melted.
Dependencies are inferred from the claim text.