JP2005194623A - NiAlボンディングコートを使用して被覆部品を補修する方法 - Google Patents
NiAlボンディングコートを使用して被覆部品を補修する方法 Download PDFInfo
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
- C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/36—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including layers graded in composition or physical properties
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
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- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
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- F05B2230/31—Layer deposition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Abstract
【解決手段】 本方法は、ベース金属基体の一部分も除去するように断熱皮膜システムを除去し、かつ除去したベース金属基体の厚さを測定する段階を含む。除去したベース金属基体の一部分は、厚さΔtを有する。さらに、基体にβ相NiAlオーバレイコートを施工し、かつβ相NiAlオーバレイコートと前に除去したボンディングコートとの間の厚さの差Δxを求める段階を含む。さらに、Δtが除去したベース金属基体の部分を補償するように上層セラミック断熱皮膜を公称厚さt+Δt−Δxまで再施工する段階を含む。高圧タービンブレードの被覆翼形部外形寸法が、ほぼエンジン運転使用前の被覆外形寸法に復元される利点がある。
【選択図】 図2
Description
12 翼形部
14 ダブテール
16 プラットフォーム
18 断熱皮膜システム
20 ボンディングコート
22 セラミック断熱皮膜
Claims (9)
- エンジン作動に曝されてきた被覆部品を、該部品の被覆外形寸法を復元しかつその後のエンジン作動効率を増大させるように補修する方法であって、
(a)その上に断熱皮膜システムを有するベース金属基体を含み、前記断熱皮膜システムが、前記ベース金属基体上のボンディングコート(20)と公称厚さtを有する上層セラミック断熱皮膜(22)とを含む、エンジン運転使用済み部品を準備する段階と、
(b)前記ベース金属基体の一部分も除去するように前記断熱皮膜システムを除去し、かつ前記除去したベース金属基体の厚さを測定して、該除去したベース金属基体の一部分の厚さΔtを求める段階と、
(c)前記基体にβ相NiAlオーバレイコート(21)を施工し、かつ前記β相NiAlオーバレイコート(21)と前に除去したボンディングコート(20)との間の厚さの差Δxを求める段階と、
(d)Δtが前記段階(b)において除去したベース金属基体の部分を補償しかつ被覆部品の寸法がほぼエンジン運転使用前の被覆外形寸法に復元されてその後のエンジン作動効率を増大させるように、上層セラミック断熱皮膜(22)を公称厚さt+Δt−Δxまで再施工する段階と、
を含む方法。 - エンジン作動に曝されてきた被覆高圧タービンブレード(10)を、該ブレード(10)の翼形部(12)外形寸法を復元するように補修する方法であって、
(a)その上に断熱皮膜システムを有するニッケル基合金で作られたベース金属基体を含み、前記断熱皮膜システムが、前記ベース金属基体上の拡散ボンディングコート(20)と公称厚さtを有するイットリア安定化ジルコニア材料を含む上層セラミック断熱皮膜(22)とを含む、エンジン運転使用済み高圧タービンブレード(10)を準備する段階と、
(b)前記ベース金属基体の一部分も除去するように前記断熱皮膜システムを除去し、かつ前記除去したベース金属基体の厚さを測定して、該除去したベース金属基体の一部分の厚さΔtを求める段階と、
(c)前記基体にβ相NiAlオーバレイコート(21)を施工し、かつ前記β相NiAlオーバレイコート(21)と前に除去したボンディングコートとの間の厚さの差Δxを求める段階と、
(d)Δtが前記段階(b)において除去したベース金属基体の部分を補償しかつ前記被覆ブレード(10)の被覆翼形部(12)外形寸法がほぼエンジン運転使用前の被覆外形寸法に復元されるように、上層セラミック断熱皮膜(22)を公称厚さt+Δt−Δxまで再施工する段階と、
を含む方法。 - エンジン作動に曝されてきた被覆部品を、該部品の被服翼形部(12)外形寸法を復元するように補修する方法であって、
(a)その上に断熱皮膜システムを有するニッケル基合金で作られたベース金属基体を含み、前記断熱皮膜システムが、前記ベース金属基体上の拡散ボンディングコート(20)と公称厚さtを有するイットリア安定化ジルコニア材料を含む上層セラミック断熱皮膜(22)とを含む、エンジン運転使用済み部品を準備する段階と、
(b)前記部品を検査する段階と、
(c)前記ベース金属基体の一部分も除去するようにストリッピング法により前記断熱皮膜システムを除去し、前記除去したベース金属基体の部分が厚さΔtを有するようにする段階と、
(d)前記基体にβ相NiAlオーバレイコート(21)を施工し、かつ前記β相NiAlオーバレイコート(21)と前に除去したボンディングコート(20)との間の厚さの差Δxを求める段階と、前記部品を重量測定してΔtを計算する段階と、
(e)Δtが前記段階(c)において除去したベース金属基体の部分を補償しかつ前記被覆部品の翼形部(12)外形寸法がほぼエンジン運転使用前の被覆外形寸法に復元されるように、上層セラミック断熱皮膜(22)を公称厚さt+Δt−Δxまで再施工する段階と、
を含む方法。 - 前記エンジン運転使用済み部品が高圧タービンブレードであり、前記被覆部品の被覆翼形部(12)外形寸法が復元される、請求項1又は請求項2に記載の方法。
- 前記段階(c)の後に部品の重量を測定しかつ前記段階(d)において施工すべきΔtを計算する段階をさらに含む、請求項1乃至請求項3のいずれか一項に記載の方法。
- tが約0.0762mm〜約0.254mm(3mil〜10mil)の間であり、Δtが少なくとも約0.0127mm(0.5mil)である、請求項1乃至請求項3のいずれか一項に記載の方法。
- 前記段階(a)のボンディングコート(20)が、拡散アルミナイド皮膜又はMCrAlY皮膜を含む、請求項1乃至請求項3のいずれか一項に記載の方法。
- 前記ボンディングコート(20)が、少なくとも約0.2原子パーセントのジルコニウムを有するNiAlコート(21)を含む、請求項1乃至請求項3のいずれか一項に記載の方法。
- 前記βNiAlオーバレイコート(21)が、約2〜15原子パーセントのクロムと約0.1〜1.2原子パーセントのジルコニウムとを含む、請求項1乃至請求項3のいずれか一項に記載の方法。
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US10/714,430 US7094444B2 (en) | 2003-11-13 | 2003-11-13 | Method for repairing coated components using NiAl bond coats |
US10/714,430 | 2003-11-13 |
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JP2007092169A (ja) * | 2005-09-26 | 2007-04-12 | General Electric Co <Ge> | ガンマプライム相含有ニッケルアルミナイド皮膜 |
JP2007092168A (ja) * | 2005-09-26 | 2007-04-12 | General Electric Co <Ge> | ガンマプライム相含有ニッケルアルミナイド皮膜 |
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Also Published As
Publication number | Publication date |
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EP1533396A2 (en) | 2005-05-25 |
JP5036965B2 (ja) | 2012-09-26 |
EP1533396A3 (en) | 2005-06-01 |
BRPI0405193B1 (pt) | 2013-08-06 |
EP1533396B1 (en) | 2011-08-03 |
CA2486841C (en) | 2010-12-21 |
US20060029723A1 (en) | 2006-02-09 |
CA2486841A1 (en) | 2005-05-13 |
SG112049A1 (en) | 2005-06-29 |
BRPI0405193A (pt) | 2005-07-19 |
US7094444B2 (en) | 2006-08-22 |
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