METHOD OF REPAIRING GAS TURBINE COMPONENT, GAS TURBINE COMPONENT, AND GAS TURBINE

Title:

METHOD OF REPAIRING GAS TURBINE COMPONENT, GAS TURBINE COMPONENT, AND GAS TURBINE

Document Type and Number:

Japanese Patent JP2010242610

Kind Code:

A

Abstract:

To simply repair a gas turbine component made from Ni-based superalloy in a short time.

A repaired part of the gas turbine component is irradiated with a high energy beam, and a γ' phase in the gas turbine component is solid-dissolved in a γ phase to remove a crack of the repaired part. Then, padding is carried out in a recessed portion formed by removing the crack, and next, solution heat treatment is carried out on the gas turbine component. Then, aging heat treatment is performed on the gas turbine component, and the γ' phase is crystallized at the repaired part to repair the gas turbine component.

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Inventors:

HINO TAKEHISA
KONO WATARU
TAKAKU REKI
SAITO DAIZO
ITO KATSUYASU
SAKAI YOSHIAKI

Application Number:

JP2009091575A

Publication Date:

October 28, 2010

Filing Date:

April 03, 2009

Export Citation:

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Assignee:

TOSHIBA CORP

International Classes:

F02C7/00; B23K26/34; B23K31/00; F01D25/00

Attorney, Agent or Firm:

Saichi Suyama
Hideaki Suyama
Yukio Kawahara
Satoshi Yamashita
Hiroshi Kumai

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