Mitsubishi Heavy Industries Limited

Hiroki Komuro

Masahiko Mega

Shuji Tanigawa

Koji Tsukimoto

Taiji Torigoe

Yoshifumi Okajima

Masashi Kitamura

Takahiro Tachibana

Masayuki Ota

Takahisa Hasegawa

Sosuke Kawasumi

A ceramic coating according to at least one embodiment of the present disclosure includes: a bond coat layer formed on a substrate; and a ceramic layer formed on the bond coat layer. The ceramic layer has a first region in contact with an interface between the ceramic layer and the bond coat layer and a second region father away from the interface than the first region from the interface. In a cross-section along a thickness direction of the ceramic layer, the number of crack intersection points at which two or more cracks intersect per unit area in the ceramic layer is larger in the first region than in the second region.

Ceramic coating, turbine component, and gas turbine

A method of manufacturing a fabricated object includes forming the fabricated object by laminating metal powder, the fabricated object including an opening portion that communicates with a hollow internal space, mounting a plug in the opening portion, and welding the plug mounted in the opening portion to the fabricated object.

Method of manufacturing fabricated object

A unidirectionally solidified article repair method according to one embodiment includes a step of forming a groove part overlapping only on one of a plurality of crystal grain boundaries in a base material made of a unidirectionally solidified alloy in which the plurality of crystal grain boundaries are aligned in one direction, and a step of forming a welded part having a metal composition similar to that of the base material by a metal used in welding with the base material in the groove part.

Unidirectionally solidified article, turbine rotor blade and unidirectionally solidified article repair method

Growing community of inventors

Tokyo, Japan

Hiroki Komuro