Mitsubishi Heavy Industries Limited

Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Steel Mfg. Co., Ltd.

Tsinghua University

Mitsubishi Jukogyo Kabushiki Kaisha

National Institute for Materials Science

Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.

Mitsubishi Power, Ltd.

Mitsubishi Heavy Indsutries, Ltd.

Taiji Torigoe

Ikuo Okada

Masahiko Mega

Yoshifumi Okajima

Kazutaka Mori

Koji Takahashi

Kouji Takahashi

Shuji Tanigawa

Sunao Aoki

Keizo Tsukagoshi

Ichiro Nagano

Hisataka Kawai

Eisaku Ito

Yoshitaka Uemura

Hidetaka Oguma

Minoru Ohara

Yasuhiko Tsuru

Masahiro Yamada

Hiroshi Ishikawa

Masamitsu Kuwabara

Junichiro Masada

Takashi Arai

Hiroshi Harada

Yoshiaki Inoue

Hideki Yamaguchi

Hiroyuki Kimura

Koichi Tanimoto

Hitoshi Morimoto

Kazuharu Hirokawa

Hiroyuki Mitsui

Toshiharu Kobayashi

Katsuhiko Abe

Yukihiro Hashimoto

Hideaki Kaneko

Yutaka Koizumi

Yuya Konno

Daigo Watanabe

Kengo Yamaguchi

Ryuichi Yamamoto

Tadaharu Yokokawa

Takayuki Kurimura

Masaki Taneike

Katsunori Akiyama

Daisuke Kudo

Katsumi Namba

Naotoshi Okaya

Itaru Tamura

Soji Kasumi

Atsushi Moriwaki

Hidemichi Koyabu

Mineaki Matsumoto

Kyoko Kawagishi

Yutaka Kawata

Hitoshi Tamaki

Qiang Xu

Masato Shida

Shigenari Horie

Hiroshi Makigano

Ichiro Tsuji

Toshio Sakon

Kazuma Takeno

Wei Pan

Hiroki Komuro

Keisuke Ihara

Takehiko Hirata

Tsuyoki Kokubun

Masao Sakamoto

Norikazu Tezuka

Kei Osawa

Wataru Murono

Yukiko Nishiura

Shusuke Sakuma

Shyuichi Sakashita

Takeshi Naito

Hidenobu Tamai

Shuichi Sakashita

Toshio Mochizuki

Takashi Kawabata

Kazunori Tokoro

Sosuke Kawasumi

Hidataka Oguma

Nobuyuki Izutsu

Tomoaki Yunomura

Yuya Fujii

Aki Inoue

Zhi-Gang Yang

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 thermal barrier coating includes a bond coat layer deposited on a substrate, and a ceramic layer deposited on the bond coat layer. The ceramic layer includes a first layer having a porosity of 10% or more and 15% or less, and a second layer having a porosity of 0.5% or more and 9.0% or less and deposited on the first layer.

Thermal barrier coating, turbine member, gas turbine, and method for producing thermal barrier coating

A turbine rotor blade includes a blade body and a tip shroud on a tip of the blade body. The tip shroud has a contact block configured to face a tip shroud of an adjacent turbine rotor blade, and the contact block includes a base material, an oxidation resistant coating on the surface of the base material, and a hard wear resistant coating on the surface of the oxidation resistant coating.

Turbine rotor blade and contact surface manufacturing method

The present invention provides a thermal barrier coated component, monitoring or evaluation of the soundness of which is able to be adequately carried out on the basis of the thermal boundary conditions that are detected by a sensor. A thermal barrier coated component according to the present invention comprises: a base material; a first bond coat layer that is a metal bonding layer formed on the base material; a sensor unit that comprises a sensor and a conductive wire, which are formed on the first bond coat layer; a second bond coat layer that is formed on the first bond coat layer so as to cover at least the sensor unit, while having a surface roughness higher than that of the first bond coat layer; and a top coat layer that is formed on the second bond coat layer.

Thermal barrier coated component and method for producing thermal barrier coated component

A testing method of thermal barrier coating (TBC) is for evaluating the presence or absence of damage to TBC formed on a bending part on which compression stress acts. The method includes a test piece that includes a pair of arm parts, a bending part arranged between the pair of arm parts, and a TBC layer on a bending surface of the bending part; attaching the test piece to a compression testing device after preparing the test piece; and applying compression stress to the test piece in a direction for bringing the pair of arm parts close together after attaching the test piece with the compression testing device. The pair of arm parts are arranged so as to separate from each other from base end portions toward front end portions of the arm parts. The bending part is arranged between the base end portions.

Testing method and test piece of thermal barrier coating

A method of forming a sprayed coating includes preparing a spray target member having a surface on which openings of first ends of holes are formed, preparing a plurality of masking pins each of which comprises metal, and inserting each of the masking pins into a corresponding one of the holes so that each of the masking pins partially protrudes from the surface. The method also includes applying an adhesive agent for fixing the masking pins to the respective holes, to at least one of the holes or the masking pins, forming a ceramic layer by spraying on the surface of the spraying target member, the ceramic layer comprising a ceramic material, while the masking pins are fixed to the respective holes via the adhesive agent, and removing the masking pins from the holes after the spraying step.

Method of forming sprayed coating, high-temperature component for turbine, turbine, masking pin for forming sprayed coating, and masking member

A method for repairing a target member including a ceramic matrix composite reinforced by ceramic fiber includes: a removal step of removing at least a part of a surface of the target member; an arrangement step of arranging a green body for repair which includes the ceramic fiber on a portion where the surface is removed in the removal step; an impregnation step of impregnating at least the portion of the target member where the green body for repair is disposed with slurry; and a sintering step of sintering the target member on which the green body for repair is disposed, after the impregnation step.

Method for repairing ceramic matrix composite and ceramic matrix composite member

An impeller for a rotary machine includes a base material of the impeller made of Al or an Al alloy. A surface layer for the impeller is formed by an electroless plating layer with a Ni&#x2014;P based alloy and an under layer disposed between the base material and the surface layer, the under layer having a smaller Vickers hardness than the surface layer.

Impeller for rotary machine, compressor, supercharger, and method for producing impeller for rotary machine

A thermal barrier coating film includes a bond coat layer that is a metallic bond layer formed on a base material; a topcoat layer that is a ceramic-containing layer formed on the bond coat layer; and at least one of a protective layer and a protective substance. The protective layer is formed on the topcoat layer and mainly contains SrSO. The protective substance is provided in a plurality of void spaces included in the topcoat layer and mainly contains SrSO.

Thermal barrier coating film, turbine member, and thermal barrier coating method

A thermal barrier coating includes a highly porous layer and a dense layer. The highly porous layer is formed on a heat-resistant base, is made of ceramic, has pores, has a layer thickness of equal to or larger than 0.3 mm and equal to or smaller than 1.0 mm, and has a pore ratio of equal to or higher than 1 vol % and equal to or lower than 30 vol %. The dense layer is formed on the highly porous layer, is made of ceramic, has a pore ratio of equal to or lower than 0.9 vol % that is equal to or lower than the pore ratio of the highly porous layer, and has a layer thickness of equal to or smaller than 0.05 mm.

Thermal barrier coating, turbine member, and gas turbine

A method for producing a thermal spray powder includes: a preparing step of preparing a powder mixture containing a first particle made from zirconia-based ceramic containing a first additive agent and a second particle made from zirconia-based ceramic containing a second additive agent, the powder mixture having a 10% cumulative particle diameter of more than 0 &#x3bc;m and not more than 10 &#x3bc;m; and a secondary-particle producing step of producing a plurality of secondary particles each of which includes the first particle and the second particle sintered with each other.

Method of producing thermal spray powder, manufacture apparatus of thermal spray powder, and thermal spray powder produced by the producing method

An erosion test apparatus includes a combustor configured to obtain a combustion gas by mixing and combusting compressed air and a fuel, and an erodent supply unit configured to supply an erodent to the combustion gas. The erosion test apparatus further includes an accommodation support unit configured to accommodate and support a test piece having a front surface coated through thermal barrier coating, and an accelerator configured to accelerate the combustion gas including the erodent to collide with the test piece.

Erosion test apparatus, accelerator and erosion test method

A process for producing a thermal barrier coating having an excellent thermal barrier effect and superior durability to thermal cycling. Also, a turbine member having a thermal barrier coating that has been formed using the production process, and a gas turbine. The process for producing a thermal barrier coating includes: forming a metal bonding layer () on a heat-resistant alloy substrate (), and forming a ceramic layer () on the metal bonding layer () by thermal spraying of thermal spray particles having a particle size distribution in which the 10% cumulative particle size is not less than 30 &#x3bc;m and not more than 100 &#x3bc;m.

Process for producing thermal barrier coating

The Ni-based single crystal alloy disclosed here is a single crystal and has a chemical composition containing, as % by mass,

Ni-based single crystal superalloy

A bolt has a male screw with a surface hardening portion that has an increased surface hardness and that is applied with a compressive residual stress. The male screw is formed by cutting the bolt, and performing a process to provide at least on the surface of the male screw of the bolt the surface hardening portion that has increased hardness and that is applied with a compressive residual stress. As a result, the fatigue resistance of the male screw is improved and the bolt is effective for use in a portion where the male screw is subject to a repetitive stress.

Bolt and manufacturing method of bolt

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Tokyo, Japan

Taiji Torigoe