JP2005188505A - 保護被膜を備えたガスタービン部品、および超合金金属基板上に保護被膜を作製する方法 - Google Patents
保護被膜を備えたガスタービン部品、および超合金金属基板上に保護被膜を作製する方法 Download PDFInfo
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Abstract
【解決手段】 超合金金属基板と、基板上に形成され、アルミニウム、ニッケル、および白金の金属間化合物を含む接合下層と、接合下層上に形成されたアルミナ膜上に固定されたセラミック外層とを含むガスタービン部品。その接合下層は、本質的には、アルミニウム濃縮α−NiPt型構造によって構成されるNi−Pt−Al三成分系、特に、z、y、およびxが0.05≦z≦0.40、0.30≦y≦0.60、および0.15≦x≦0.40となるような組成物NizPtyAlxを有するNi−Pt−Al三成分系を含む。
【選択図】図1
Description
・アルミナ膜をその表面に形成し、且つ存続できるようにし、それにより、セラミック外層との接合を高める;
・外側のセラミック層をなんとか通過する周囲の媒体中の酸素による酸化による腐食から基板を保護する;および、
・何もしなければ、アルミナ膜を汚染しその結果接合下層と外側のセラミック層との界面に影響を与え、そのためその付着に影響を及ぼす金属基板のある種の元素に対して拡散障壁を構成する。
本発明は、限定されない表示により与えられる以下記述を読むことにより、より良く理解されるだろう。
図1は保護被膜を備えた超合金金属基板の非常に概略的な断面図である。
・75%〜100%の範囲の上記で定義されたNi−Pt−AI三成分系、
・0%〜10%の範囲のコバルトおよび/またはクロム、
・0%〜5%の範囲のY、Zr、Hf、およびランタニドから選択される反応性元素(複数可)、および、
・0%〜10%の範囲のPd、Ru、およびRhから選択される貴金属である。
第1の実施形態(図3)では、接合下層は、接合下層に望ましい組成を有する被膜を作製することによって、基板由来の元素の実質的または有意な拡散を引き起こさないで、すなわち、オーバーレイ式の方法(段階20)を実施することによって形成される。
第2の実施形態(図7)では、金属基板がニッケルを基にした超合金で作製されているために、接合下層は、方法の第1の部分では、本質的にアルミニウムと白金を含む金属間化合物を形成することによって、方法のその後の部分では、セラミック外層の形成の前または形成中に温度を上げることにより基板からのニッケルを拡散させることによって作製される。
実施例1および2の基板と同じ組成を有する基板に、接合下層を、従来技術で知られている方法で、Ni−Al二相図の白金が濃縮されたβ−型相に対応する接合下層を得るように、白金層の電着によって、およびアルミニウム蒸着によって形成した。接合下層の厚さは60μmであった。その後、セラミック外層を、実施例1に記述されているように形成した。
12 接合下層
14 アルミナ膜
16 セラミック外層
Claims (19)
- 接合下層が本質的にはアルミニウム濃縮α−NiPt型構造によって構成されるNi−Pt−Al三成分系を含むことを特徴とする、超合金金属基板と、その基板上に形成され、アルミニウム、ニッケル、および白金を含む金属間化合物を含む接合下層と、その接合下層上に形成されたアルミナ膜上に固定されたセラミック外被とを含む、ガスタービン部品。
- 前記Ni−Pt−Al三成分系は、z、y、およびxが、0.05≦z≦0.40、0.30≦y≦0.60、および0.15≦x≦0.40となるような組成物NizPtyAlxを有することを特徴とする請求項1に記載のガスタービン部品。
- 前記接合下層が、さらに、アルミニウム、ニッケル、および白金以外の少なくとも1つの追加の金属を含むことを特徴とする請求項1または請求項2に記載のガスタービン部品。
- 前記接合下層が、さらに、コバルトおよびクロムから選択される少なくとも1つの金属を含むことを特徴とする請求項3に記載のガスタービン部品。
- 前記接合下層が、パラジウム、ルテニウム、およびレニウムから選択される金属を含むことを特徴とする請求項3または請求項4に記載のガスタービン部品。
- 前記接合下層が、さらに、イットリウム、ジルコニウム、ハフニウム、およびランタニドよって構成される群から選択される少なくとも1つの反応性元素を含むことを特徴とする請求項1から5のいずれか一項に記載のガスタービン部品。
- 前記接合下層の厚さが2μm〜120μmの範囲にあることを特徴とする請求項1から6のいずれか一項に記載のガスタービン部品。
- 前記接合下層の厚さが40μm未満であることを特徴とする請求項7に記載のガスタービン部品。
- 前記接合下層の厚さが20μm未満であることを特徴とする請求項7に記載のガスタービン部品。
- アルミニウム濃縮α−NiPt構造によって構成されるNi−Pt−Al三成分系を本質的に含む接合下層が形成されることを特徴とする、アルミニウム、ニッケル、および白金の金属間化合物を含む該接合下層を基板上に形成し、該接合下層上にあるアルミナ膜に固定されているセラミック外層を形成することを含む、熱防護被膜を超合金金属基板上に形成する方法。
- 前記接合下層を、前記下層にとって望ましい組成に対応する組成の被膜を基板上に形成することによって作製することを特徴とする請求項10に記載の方法。
- 前記接合下層を、物理蒸着法により被膜を形成することによって作製することを特徴とする請求項11に記載の方法。
- 前記接合下層を、それぞれ白金、ニッケル、およびアルミニウムの少なくとも複数の単層の物理蒸着によって、およびその蒸着層の金属を互いに反応させることによって形成することを特徴とする請求項12に記載の方法。
- 前記接合下層を各層を堆積させることによって形成し、該各層の少なくとも一部は、複数の下層成分を予め合金化された形態で含むことを特徴とする請求項12に記載の方法。
- 前記接合下層を、前記下層にとって望ましい組成に対応する予め合金化された組成物を堆積させることによって形成することを特徴とする請求項12に記載の方法。
- 前記接合下層を、電着により被膜を形成することによって作製することを特徴とする請求項11に記載の方法。
- ニッケルに基づく超合金基板上に、少なくとも複数の白金およびアルミニウムの交互単層を物理蒸着し、その堆積層の金属間の発熱反応を起こし、およびニッケルを基板から前記接合下層に拡散させるために、900℃以上の温度で熱処理することによって、前記接合下層を形成することを特徴とする請求項10に記載の方法。
- 前記セラミック外層を形成しながら、900℃以上の温度で前記熱処理を行うことを特徴とする請求項16に記載の方法。
- 前記セラミック外層を形成する前に、900℃以上の温度で前記熱処理を行うことを特徴とする請求項16に記載の方法。
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JP2016179925A (ja) * | 2015-03-24 | 2016-10-13 | 旭硝子株式会社 | ガラス製造用の白金構造体、ガラス製造装置、およびガラスの製造方法 |
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2003
- 2003-10-28 FR FR0312619A patent/FR2861423B1/fr not_active Expired - Lifetime
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2004
- 2004-10-20 EP EP04292489A patent/EP1528118A3/fr not_active Withdrawn
- 2004-10-27 UA UA20041008777A patent/UA82188C2/uk unknown
- 2004-10-27 JP JP2004311987A patent/JP4392323B2/ja active Active
- 2004-10-27 RU RU2004132522/06A patent/RU2355891C2/ru active
- 2004-10-28 US US10/974,973 patent/US7311981B2/en active Active
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JP2014122430A (ja) * | 2005-11-14 | 2014-07-03 | Sulzer Metco Ag | 基体そして加工物も被覆する方法 |
WO2011115259A1 (ja) * | 2010-03-19 | 2011-09-22 | Jx日鉱日石金属株式会社 | ニッケル合金スパッタリングターゲット、Ni合金薄膜及びニッケルシリサイド膜 |
JP2013531735A (ja) * | 2010-06-18 | 2013-08-08 | スネクマ | プラチナおよびニッケル層の進歩的な付着によって表面をアルミナイズする方法 |
US10183311B2 (en) | 2010-06-18 | 2019-01-22 | Safran Aircraft Engines | Method for aluminizing a surface by means of the advance deposition of a platinum and nickel layer |
JP2013139565A (ja) * | 2012-01-05 | 2013-07-18 | General Electric Co <Ge> | 放射線軽減物品及び製造方法 |
JP2016179925A (ja) * | 2015-03-24 | 2016-10-13 | 旭硝子株式会社 | ガラス製造用の白金構造体、ガラス製造装置、およびガラスの製造方法 |
JP2019536905A (ja) * | 2016-10-27 | 2019-12-19 | サフラン | ニッケル基単結晶超合金基材を含む部品およびその製造方法 |
JP7057778B2 (ja) | 2016-10-27 | 2022-04-20 | サフラン | ニッケル基単結晶超合金基材を含む部品およびその製造方法 |
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JP4392323B2 (ja) | 2009-12-24 |
RU2004132522A (ru) | 2006-04-10 |
US7569251B2 (en) | 2009-08-04 |
EP1528118A3 (fr) | 2006-06-07 |
EP1528118A2 (fr) | 2005-05-04 |
FR2861423A1 (fr) | 2005-04-29 |
US20090087572A1 (en) | 2009-04-02 |
RU2355891C2 (ru) | 2009-05-20 |
UA82188C2 (uk) | 2008-03-25 |
US7311981B2 (en) | 2007-12-25 |
FR2861423B1 (fr) | 2008-05-30 |
US20050132717A1 (en) | 2005-06-23 |
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