JP5815837B2 - 金属基材上のイリジウムを含む界面拡散バリア層 - Google Patents
金属基材上のイリジウムを含む界面拡散バリア層 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
本発明の1以上の例の詳細は、添付の図面と以下の説明で記述される。本発明の他の特徴、目的と利点は、該説明および図面、および請求項から明らかである。
一組の合金基材が個々にが、約25μmの厚みを有する保護層でコートされた。高密度(dense)で、微細構造において実質的に均一である保護層を適用(apply)するために、DVDが用いられた。DVDプロセスは、コーティングの密度を高めるための基材バイアスで、高いスキャン周波数と中空−カソードプラズマ励起で、70kVおよび10kWの電子ビーム銃を利用した。基材の公称の組成は、15重量%のCr、約18.5重量%のCo、約5重量%のMo、約3重量%のAl、約3.6重量%のTi、約2重量%のTa、約0.5重量%のHf、約0.06重量%のZr、約0.027重量%のC、約0.015重量%のB、および残部Niであった。保護層の公称の組成は、30重量%のCr、30重量%のFe、1重量%のMn、1重量%のSi、および残部Niであった。
一組の合金基材が、個々に、Irからなる10μm厚の拡散バリア層でコートされた。高密度で微細構造において実質的に均一な拡散バリア層を適用するために、DVDが用いられた。DVDプロセスは、コーティングの密度を高めるための基材バイアスで、高いスキャン周波数と中空−カソードプラズマ励起で、70kVおよび10kWの電子ビーム銃を利用した。DVDは、拡散バリア層の上に約25μmの厚みを有する保護層を堆積させるためにも用いられた。基材の公称の組成は、15重量%のCr、約18.5重量%のCo、約5重量%のMo、約3重量%のAl、約3.6重量%のTi、約2重量%のTa、約0.5重量%のHf、約0.06重量%のZr、約0.027重量%のC、約0.015重量%のB、および残部Niであった。保護層の公称の組成は、30重量%のCr、30重量%のFe、1重量%のMn、1重量%のSi、および残部Niであった。図2は、基材22を例示する一組の合金基材の例の断面顕微鏡写真であり、拡散バリア層24は基材22上に形成され、保護層26は拡散バリア層24上に形成された。
予め800℃で100時間の暴露の予備酸化ステップを受けたコートされた基材上に、タイプIIの熱的腐食テストを実行した。基材の公称の組成は、15重量%のCr、約18.5重量%のCo、約5重量%のMo、約3重量%のAl、約3.6重量%のTi、約2重量%のTa、約0.5重量%のHf、約0.06重量%のZr、約0.027重量%のC、約0.015重量%のB、および残部Niであった。保護層の公称の組成は、30重量%のCr、30重量%のFe、1重量%のMn、1重量%のSi、および残部Niであった。拡散バリア層はIrから成り、堆積で約10μmであった。テスト試料は、300ppmのSO2を含む空気流中で、20時間インターバルで700℃に保持され、その間に、0.075mg/cm2の濃度の食塩水が、コートされた面に室温で塗布された。700℃で総計100時間の暴露の後、コーティングは、タイプII条件で熱的な腐食攻撃の証拠を示さなかった。高密度で粘着性のCr2O3スケールは、テストされた期間を通して、環境劣化に対する充分なバリアを与えた。保護コーティングへのコバルト色の移動が遅延されるか、低減されるため、Irバリアを有するコーティングは、Irバリアのないコーティングと比べて、より長期間の間、腐食に対するその耐性を保持すると予測される。
Claims (4)
- 2〜5重量%のAl、2〜5重量%のTi、および3%未満のTaを含むNi−ベースの超合金基材であって;該Ni−ベースの超合金が、40〜55体積%のγ−プライム(γ’)沈殿相を含むものと;
該基材上の拡散バリア層であって;該拡散バリア層が、本質的にイリジウムからなる(consisting essentially of)金属、または過半部分(majority)のイリジウムを含む合金を含むものと;
該拡散バリア層上に形成された酸化物形成性(oxide-forming)保護層とを含む、ディスクまたはスペーサ形状のガスタービンエンジン用の物品であって;
前記酸化物形成性保護層が、アルミニウムまたはクロムのうちの少なくとも1つを含む、ディスクまたはスペーサ形状のガスタービンエンジン用の物品。 - 前記拡散バリア層が、イリジウムからなる(consists of)請求項1に記載のディスクまたはスペーサ形状のガスタービンエンジン用の物品。
- 前記酸化物形成性保護層が、NiFeCrMnSi合金を含む、請求項1または2のいずれか1項に記載のディスクまたはスペーサ形状のガスタービンエンジン用の物品。
- 請求項1〜3のいずれか1項に記載のディスクまたはスペーサ形状のガスタービンエンジン用の物品を含むガスタービンエンジン。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201161474980P | 2011-04-13 | 2011-04-13 | |
US61/474,980 | 2011-04-13 | ||
PCT/US2012/033538 WO2012142422A1 (en) | 2011-04-13 | 2012-04-13 | Interfacial diffusion barrier layer including iridium on a metallic substrate |
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JP2014513210A JP2014513210A (ja) | 2014-05-29 |
JP5815837B2 true JP5815837B2 (ja) | 2015-11-17 |
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JP2014505340A Expired - Fee Related JP5815837B2 (ja) | 2011-04-13 | 2012-04-13 | 金属基材上のイリジウムを含む界面拡散バリア層 |
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US (1) | US9719353B2 (ja) |
EP (1) | EP2697408B1 (ja) |
JP (1) | JP5815837B2 (ja) |
RU (1) | RU2566697C2 (ja) |
UA (1) | UA110643C2 (ja) |
WO (1) | WO2012142422A1 (ja) |
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CN110172671A (zh) * | 2019-06-18 | 2019-08-27 | 南通大学 | 一种铝或铝合金铸造模具抗开裂保护膜及制备方法 |
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- 2012-04-13 EP EP12716960.5A patent/EP2697408B1/en not_active Not-in-force
- 2012-04-13 US US14/111,417 patent/US9719353B2/en active Active
- 2012-04-13 WO PCT/US2012/033538 patent/WO2012142422A1/en active Application Filing
- 2012-04-13 RU RU2013150514/02A patent/RU2566697C2/ru not_active IP Right Cessation
- 2012-04-13 UA UAA201313180A patent/UA110643C2/uk unknown
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Publication number | Publication date |
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EP2697408A1 (en) | 2014-02-19 |
WO2012142422A1 (en) | 2012-10-18 |
RU2566697C2 (ru) | 2015-10-27 |
UA110643C2 (uk) | 2016-01-25 |
US9719353B2 (en) | 2017-08-01 |
US20140134455A1 (en) | 2014-05-15 |
JP2014513210A (ja) | 2014-05-29 |
EP2697408B1 (en) | 2018-09-12 |
RU2013150514A (ru) | 2015-05-20 |
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