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1. WO2020065817 - METHOD FOR REPAIRING HEAT-RESISTANT ALLOY COMPONENT

Publication Number WO/2020/065817
Publication Date 02.04.2020
International Application No. PCT/JP2018/035902
International Filing Date 27.09.2018
IPC
C23C 8/60 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
8Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
60using solids, e.g. powders, pastes
B23K 9/167 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
16making use of shielding gas
167and of a non-consumable electrode
C23C 4/04 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
4Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
04characterised by the coating material
C23C 8/40 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
8Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
40using liquids, e.g. salt baths, liquid suspensions
CPC
B23K 31/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
31Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
B23K 9/167
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
16making use of shielding gas
167and of a non-consumable electrode
C23C 4/02
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
4Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
02Pretreatment of the material to be coated, e.g. for coating on selected surface areas
C23C 4/04
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
4Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
04characterised by the coating material
C23C 8/40
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
8Solid state diffusion of only non-metal elements into metallic material surfaces
40using liquids, e.g. salt baths, liquid suspensions
C23C 8/60
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
8Solid state diffusion of only non-metal elements into metallic material surfaces
60using solids, e.g. powders, pastes
Applicants
  • 中国電力株式会社 THE CHUGOKU ELECTRIC POWER CO., INC. [JP]/[JP]
Inventors
  • 西田 秀高 NISHIDA Hidetaka
Agents
  • 鈴木 均 SUZUKI Hitoshi
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR REPAIRING HEAT-RESISTANT ALLOY COMPONENT
(FR) PROCÉDÉ DE RÉPARATION D’ÉLÉMENT EN ALLIAGE RÉSISTANT A LA CHALEUR
(JA) 耐熱合金製部品の補修方法
Abstract
(EN)
The problem to be addressed by the present invention is to realize a method for repairing a heat-resistant alloy component that has cracked due to use in a high-temperature environment. This method for repairing a heat-resistant alloy component (rotor blade, stator blade) comprises: a repair step (repair step, S20) in which cracking that has occurred due to use in a high-temperature environment is repaired by welding; an adhesion step (application/thermal spraying step, S30) in which a grain boundary strengthening element for improving the grain boundary strength of the heat-resistant alloy is made to adhere to a surface at a cracking repair location; and a processing step (HIP processing step, S40) in which hot isostatic pressing processing is applied to the heat-resistant alloy component to which the grain boundary strengthening element has been made to adhere.
(FR)
Le problème décrit par la présente invention consiste à réaliser un procédé de réparation d'un élément en alliage résistant à la chaleur qui s'est fissuré en raison d'une utilisation dans un environnement à haute température. Ce procédé de réparation d'élément en alliage résistant à la chaleur (pale de rotor, pale de stator) comprend : une étape de réparation (étape de réparation, S20) dans laquelle la fissuration qui s'est produite en raison d'une utilisation dans un environnement à haute température est réparée par soudage ; une étape d'adhérence (étape d'application/de pulvérisation thermique, S30) dans laquelle un élément de renforcement de joint de grain servant à améliorer la résistance d'un joint de grain de l'alliage résistant à la chaleur est amené à adhérer à une surface au niveau d'un emplacement de réparation de fissuration ; et une étape de traitement (étape de traitement HIP, S40) dans laquelle un traitement par compression isostatique à chaud (HIP) est appliqué à l'élément en alliage résistant à la chaleur auquel l'élément de renforcement de joint de grain a été amené à adhérer.
(JA)
本発明の課題は、高温環境下での使用により亀裂を生じた耐熱合金製部品に対する補修方法を実現することにある。 本発明に係る耐熱合金製部品(動翼、静翼)の補修方法は、高温環境下での使用により生じた亀裂を溶接によって補修する補修工程(補修工程,S20)と、亀裂の補修箇所の表面に、耐熱合金の粒界強度を向上させるための粒界強化元素を付着させる付着工程(塗布/溶射工程,S30)と、粒界強化元素を付着させた耐熱合金製部品に対して熱間等方圧加圧処理を行う処理工程(HIP処理工程,S40)と、を備える。
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