JP2015059235A - 熱遮蔽コーティングしたNi合金部品及びその製造方法 - Google Patents
熱遮蔽コーティングしたNi合金部品及びその製造方法 Download PDFInfo
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Abstract
Description
中間層組織の評価を行った。試験片の基材には、質量比で、Co:5.5質量%、Cr:5.4質量%、Mo:2.2質量%、W:2.9質量%、Al:5.6質量%、Nb:0.5質量%、Ta:5.5質量%、Hf:0.1質量%、Re:7.5質量%、Ru:5.0質量%、残部がNi及び不可避的不純物からなる組成のNi基単結晶合金を使用した。試験片には、基材表面にPt膜を成膜したものと、Pt−Ir合金膜を成膜したものとを各々用意した。Pt−Ir合金膜の合金組成については、Pt−10at%Ir、Pt−20at%Ir、Pt−30at%Irの3種類とした。
熱遮蔽コーティングした試験片について剥離寿命特性を評価した。試験片の基材には、中間層組織の評価に使用したNi基単結晶合金と同じものを使用した。試験片の形状については、直径12mm、厚み5mmの円柱状とした。
基材の表面に中間層を形成して酸化特性評価試験を行った。基材と、中間層の形成方法については剥離寿命評価試験と同じである。酸化特性評価用の試験片では、安定化ジルコニア膜が被覆されていないものを使用した。
Claims (16)
- 熱遮蔽コーティングしたNi合金部品であって、
Alを含有するNi合金で形成された基材と、
前記基材の表面に形成された中間層と、
前記中間層の表面に形成され、セラミックスで形成された熱遮蔽層と、
を備え、
前記中間層は、熱遮蔽層側の表面に、γ´−Ni3Al相で形成され、Ptを含むγ´層を有していることを特徴とする熱遮蔽コーティングしたNi合金部品。 - 請求項1に記載の熱遮蔽コーティングしたNi合金部品であって、
前記γ´層は、Irを含むことを特徴とする熱遮蔽コーティングしたNi合金部品。 - 請求項2に記載の熱遮蔽コーティングしたNi合金部品であって、
前記γ´層における熱遮蔽層側の表面は、0μmより大きく5μm以下の周期で凹凸状に形成されていることを特徴とする熱遮蔽コーティングしたNi合金部品。 - 請求項2または3に記載の熱遮蔽コーティングしたNi合金部品であって、
前記中間層は、前記γ´層の基材側に、γ―Ni固溶体相とγ´−Ni3Al相とにより形成され、PtとIrとを含むγ+γ´層、またはγ―Ni固溶体相で形成され、PtとIrとを含むγ層からなるγ含有層を有していることを特徴とする熱遮蔽コーティングしたNi合金部品。 - 請求項4に記載の熱遮蔽コーティングしたNi合金部品であって、
前記γ含有層は、γ―Ni固溶体相の比率が50%より大きく100%以下であることを特徴とする熱遮蔽コーティングしたNi合金部品。 - 請求項4または5に記載の熱遮蔽コーティングしたNi合金部品であって、
前記中間層は、前記γ含有層の基材側に、前記基材にPtとIrとが拡散して形成された拡散層を有し、前記拡散層は、Irが濃化して形成されたIr濃化部を有していることを特徴とする熱遮蔽コーティングしたNi合金部品。 - 請求項1から6のいずれか1つに記載の熱遮蔽コーティングしたNi合金部品であって、
前記Ni合金は、ReとRuとを含むことを特徴とする熱遮蔽コーティングしたNi合金部品。 - 熱遮蔽コーティングしたNi合金部品の製造方法であって、
Alを含むNi合金で基材を形成する基材形成工程と、
前記基材の表面にPtを含む金属膜を成膜した後に熱処理して、表面側にγ´−Ni3Al相で形成され、Ptを含むγ´層を有する中間層を形成する中間層形成工程と、
前記中間層の表面にセラミックスで熱遮蔽層を形成する熱遮蔽層形成工程と、
を備えることを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項8に記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記中間層形成工程において、
前記金属膜はPt−Ir合金膜であり、前記γ´層はIrを含むことを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項9に記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記中間層形成工程において、
前記Pt−Ir合金膜におけるIrの比率は、0at%より大きく30at%以下であることを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項10に記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記Pt−Ir合金膜におけるIrの比率は、10at%以上30at%以下であることを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項11に記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記Pt−Ir合金膜におけるIrの比率は、10at%以上20at%以下であることを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項8から12のいずれか1つに記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記中間層形成工程において、熱処理温度が900℃〜1200℃、熱処理時間が1時間から100時間であることを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項13記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記中間層形成工程において、熱処理温度が1000℃〜1100℃、熱処理時間が1時間から10時間であることを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項8から14のいずれか1つに記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記基材形成工程において、
前記Ni合金は、ReとRuとを含むことを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。 - 請求項15に記載の熱遮蔽コーティングしたNi合金部品の製造方法であって、
前記Ni合金は、質量比で、Co:15.0質量%以下、Cr:4.1質量%以上8.0質量%以下、Mo:2.1質量%以上6.5質量%以下、W:3.9質量%以下、Ta:4.0質量%以上10.0質量%以下、Al:4.5質量%以上6.5質量%以下、Ti:1.0質量%以下、Hf:0.5質量%以下、Nb:3.0質量%以下、Re:3.0質量%以上8.0質量%以下、Ru:0.5質量%以上6.5質量%以下を含有し、残部がNi及び不可避的不純物からなる組成を有し、なお且つ、P1(パラメータ1)=137×[W(質量%)]+24×[Cr(質量%)]+46×[Mo(質量%)]−18×[Re(質量%)]としたときに、P1≦700を満足するNi基単結晶超合金であることを特徴とする熱遮蔽コーティングしたNi合金部品の製造方法。
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JP2013193101A JP6226231B2 (ja) | 2013-09-18 | 2013-09-18 | 熱遮蔽コーティングしたNi合金部品及びその製造方法 |
CA2924023A CA2924023C (en) | 2013-09-18 | 2014-09-12 | Thermal barrier-coated ni alloy component and manufacturing method thereof |
PCT/JP2014/074189 WO2015041162A1 (ja) | 2013-09-18 | 2014-09-12 | 熱遮蔽コーティングしたNi合金部品及びその製造方法 |
EP14846550.3A EP3048187B1 (en) | 2013-09-18 | 2014-09-12 | Ni alloy article coated with thermal shield, and production method for same |
CN201480049558.7A CN105531398B (zh) | 2013-09-18 | 2014-09-12 | 经热屏蔽涂覆的Ni合金部件及其制造方法 |
US15/052,243 US10358700B2 (en) | 2013-09-18 | 2016-02-24 | Thermal barrier-coated Ni alloy component and manufacturing method thereof |
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JP2020534475A (ja) * | 2017-09-21 | 2020-11-26 | サフラン | レニウムおよび/またはルテニウムを含む超合金で作られたタービン部品および関連する製造方法 |
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CN106636759B (zh) * | 2017-01-05 | 2018-09-21 | 中国科学院金属研究所 | 一种铂族元素强化的高热稳定性高强度镍基单晶高温合金 |
FR3064648B1 (fr) * | 2017-03-30 | 2019-06-07 | Safran | Piece de turbine en superalliage et procede de fabrication associe |
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EP3048187B1 (en) | 2020-11-25 |
CA2924023A1 (en) | 2015-03-26 |
CA2924023C (en) | 2018-05-22 |
WO2015041162A1 (ja) | 2015-03-26 |
US10358700B2 (en) | 2019-07-23 |
EP3048187A1 (en) | 2016-07-27 |
CN105531398B (zh) | 2018-05-08 |
JP6226231B2 (ja) | 2017-11-08 |
US20160168661A1 (en) | 2016-06-16 |
EP3048187A4 (en) | 2017-05-31 |
CN105531398A (zh) | 2016-04-27 |
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