Abstract: A method for implementing an abradable coating comprising: a pattern-forming step in which, using a slurry containing ceramic particles and solvent, a slurry pattern is formed on the surface of a thermal barrier coating layer; and a firing step in which the slurry pattern formed on the surface of the thermal barrier coating layer is fired to form an abradable coating layer. A ceramic material included in the thermal barrier coating layer and ceramic particles included in the abradable coating layer are of the same type.

Abstract: Provided are a coated member in which damage of a coating film can be suppressed in a high temperature environment and the coating may be performed at low cost, and a method of manufacturing the same. A coated member includes a bond coat and a top coat sequentially laminated on a substrate made of a Si-based ceramic or a SiC fiber-reinforced SiC matrix composite, wherein the top coat includes a layer composed of a mixed phase of a (Y1-aLn1a)2Si2O7 solid solution (here, Ln1 is any one of Nd, Sm, Eu, and Gd) and Y2SiO5 or a (Y1-bLn1?b)2SiO5 solid solution (here, Ln1? is any one of Nd, Sm, Eu, and Gd), or a mixed phase of a (Y1-cLn2c)2Si2O7 solid solution (here, Ln2 is any one of Sc, Yb, and Lu) and Y2SiO5 or a (Y1-dLn2?d)2SiO5 solid solution (here, Ln2? is any one of Sc, Yb, and Lu).

Abstract: A coated member includes a heat-shielding coating layer made of a zirconia-dispersed silicate in which ytterbia-stabilized zirconia is precipitated as a dispersed phase in a matrix phase which is any one of a rare earth disilicate, a rare earth monosilicate, and a mixed phase of the rare earth disilicate and the rare earth monosilicate. The rare earth disilicate is a (Y1-a[Ln1]a)2Si2O7 solid solution wherein Ln1 is any one of Sc, Yb, and Lu, or a (Y1-c[Ln2]c)2Si2O7 solid solution wherein Ln2 is any one of Nd, Sm, Eu, and Gd. The rare earth monosilicate is Y2SiO5, [Ln1?]2SiO5, a (Y1-b[Ln1?]b)2SiO5 solid solution wherein Ln1? is any one of Sc, Yb, and Lu, or a (Y1-d[Ln2?]d)2SiO5 solid solution wherein Ln2? is any one of Nd, Sm, Eu, and Gd.

Abstract: A steam turbine rotor blade for forming a turbine rotor cascade of a steam turbine includes a rotor blade main body having a blade portion, a blade base portion and a first coupling portion, which has first facing surfaces, provided on opposite end sides of the blade portion, and a second coupling portion provided in an intermediate portion of the blade portion and having second facing surfaces. The steam turbine rotor blade also includes a coating layer which is made of a Co-based alloy having a single composition on a surface of at least one of the first and facing surfaces with a diffusion layer having a thickness of 10 ?m or less provided between the coating layer and the surface.

Abstract: The thermal load testing device of the present invention makes it possible to produce a large temperature differential between a surface and an interior of a test piece while applying a load to the test piece. A thermal load testing device (1) includes a load applying portion (2) that applies a load to a tubular test piece (10) in an axial line (O) direction, the tubular test piece (10) having a hollow portion (11) that extends along the axial line (O); a cooling fluid supplying portion (3) that causes a cooling fluid to flow through the hollow portion (11); and an infrared image furnace (4) that heats the test piece (10) by a plurality of infrared sources (42) disposed so as to surround the test piece (10) from a whole region in a circumferential direction.

Abstract: This method for setting aging conditions is provided with: a step for acquiring a master curve (20) indicating the relationship between an aging condition parameter and a material strength parameter by executing an aging process on a standard material; a step for acquiring a fitting point (A) indicating the value of the material strength parameter of a subject material of which the chemical component parameters and/or metal structure parameters differ from those of the standard material; a step for acquiring a corrected aging curve (30) by correcting the master curve (20) in a manner so that a portion of the master curve (20) corresponds to the fitting point (A); and a step for setting aging conditions for the subject material on the basis of the corrected aging curve (30).

Abstract: In a method of manufacturing an axis seal, first, a roll of rolled metal material is cut into metal material plates of a predetermined size. Next, metal material plates are etched from both sides so as to form a predetermined size. Subsequently, the thin metal plates are arranged so as to be in a ring shape, oriented in the same direction, and are welded so as to be fixed. Additionally, during these processes, heat treatment is performed by heating rolls of rolled metal materials or metal material plates or thin metal plates at a predetermined timing, thereby eliminating residual stress (strain).

Abstract: In a method of manufacturing an axis seal in accordance with the present invention, first, a roll of rolled metal material is cut out to predetermined size of metal material plates. Next, metal material plates are etched from both sides so as to form a predetermined size. Subsequently, the thin metal plates are arranged so as to be in a ring shape, orienting to the same direction, and are welded to be fixed. Additionally, during these processes, heat treatment is performed by heating rolls of rolled metal materials or metal material plates or thin metal plates at a predetermined timing, thereby eliminating residual stress (strain).