JP3996059B2 - ニッケル拡散ろう付け合金及び超合金の補修方法 - Google Patents
ニッケル拡散ろう付け合金及び超合金の補修方法 Download PDFInfo
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- 229910045601 alloy Inorganic materials 0.000 title claims description 87
- 239000000956 alloy Substances 0.000 title claims description 87
- 238000005219 brazing Methods 0.000 title claims description 50
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 32
- 229910052759 nickel Inorganic materials 0.000 title claims description 19
- 229910000601 superalloy Inorganic materials 0.000 title claims description 18
- 238000009792 diffusion process Methods 0.000 title claims description 17
- 239000000843 powder Substances 0.000 claims description 113
- 238000002844 melting Methods 0.000 claims description 77
- 230000008018 melting Effects 0.000 claims description 74
- 239000000203 mixture Substances 0.000 claims description 74
- 229910052796 boron Inorganic materials 0.000 claims description 22
- 229910052782 aluminium Inorganic materials 0.000 claims description 21
- 229910052804 chromium Inorganic materials 0.000 claims description 21
- 229910052715 tantalum Inorganic materials 0.000 claims description 19
- 229910052702 rhenium Inorganic materials 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 15
- 229910052721 tungsten Inorganic materials 0.000 claims description 14
- 229910052735 hafnium Inorganic materials 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims description 11
- 229910052758 niobium Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 229910052741 iridium Inorganic materials 0.000 claims description 5
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 230000008439 repair process Effects 0.000 description 42
- 239000011651 chromium Substances 0.000 description 14
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 239000010936 titanium Substances 0.000 description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000753 refractory alloy Inorganic materials 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000531 Co alloy Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 229910000743 fusible alloy Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001011 CMSX-4 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 238000010407 vacuum cleaning Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0018—Brazing of turbine parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
- B23K35/304—Ni as the principal constituent with Cr as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B23K2101/001—Turbines
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- Powder Metallurgy (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
従って、前記ろう付け合金混合物(即ち、低融点粉末及び高融点粉末の組み合わせ)は、好ましくは50〜70%のNi、10〜15%のCr、8〜10%のTa、8〜10%のCo、4〜7%のAl、2〜4%のW、約1〜2%のRe、及びそれぞれ約0.5〜1%のMo及びHfを含む。最も好ましい態様において、前記ろう付け合金混合物は、Ti、Nb、Pd、Pt、Ir、Ru、C、B、Si、及びZrのいずれか又は全てのそれぞれ約1%以下を更に含む。
他の目的及び利点は以下の説明から明らかになるであろう。
本発明のろう付け補修組成物及び補修方法は、ニッケル又はコバルト基合金の基体を含む多種類の基体を補修するために使用できる。本発明の組成物及び方法を用いて補修できる合金の具体例としては、限定されないが、Mar−M246、Mar−M247のようなニッケル基合金;CMSX−3、CMSX−4、及びCM−186のような単結晶ニッケル合金;及びMar−M509及びX40のようなコバルト基合金がある。
本発明のろう付け合金粉末混合物は、低融点(low-melt)粉末組成物及び高融点(high-melt)粉末組成物の両方を含む。低融点合金粉末組成物は、実質的にろう付け温度以下で溶融する合金又は合金の混合物である(故に“低融点”と命名する)。これに対して、高融点合金粉末組成物は、この組成物がろう付け温度を超える溶融温度を有するため、ろう付け温度で実質的に溶融しない状態を維持する合金又は合金の混合物である(故に“高融点”と命名する)。
まで溶融しない単一の高融点合金から調製される。
み、そして、重量で、約50〜70%のNi、8〜20%のCr、8〜15%のTa、4〜10%のCo、2〜7%のAl、及び約2.25%以下のB及び/又はSi、の最終組成を有し、そして約1093℃(2000°F)〜約1232℃(2250°F)の組成物溶融範囲を有する。特定の好ましい態様において、低融点粉末組成物は、更に、Ti、W、Mo、Re、Nb、Hf、Pd、Pt、Ir、Ru、C、及びZrの、いくつか又は全てを、それぞれ約1%以下で含む。
高融点粉末組成物は、典型的に約50〜70%のNi、2〜10%のCr、2〜10%のTa、5〜15%のCo、2〜10%のAl、2〜10%のW、2〜4%のRe、及びそれぞれ3%以下のMo及びHfを含有する。最も好ましい態様において、前記高融点粉末組成物は、更にTi、Nb、C、B、Si、及びZrの、いくつか又は全てを、それぞれ約1%以下で含む。
態様において、低融点合金粉末は、(a)約74%のNi、約6%のCr、約6%のAl、約12%のCo、及び約2%のB、を含み、約1121℃(2050°F)の液相線温度を有する、約35%の第1の低融点粉末;(b)約42%のNi、約31%のCr、約26%のTa、及び約1%のB、を含み、約1232℃(2250°F)の液相線温度を有する、約45%の第2の低融点粉末;及び(c)約64%のNi、約6%のAl、約8%のCo、約4%のW、約4%のTa、約3%のSi、約1%のRe、約1%のNb、そして約1%のB、を含み、約1093℃(2000°F)の液相線温度を有する、約20%の第3の低融点粉末、を含む。
a.982〜1093℃(1800〜2000°F)に加熱して、0.5〜4時間保持し、
b.1037〜1148℃(1900〜2100°F)に加熱して、1〜4時間保持し、
c.1065〜1176℃(1950〜2150°F)に加熱して、1〜4時間保持し、
d.1093〜1204℃(2000〜2200°F)に加熱して、6〜24時間保持し、そして
e.周囲温度に冷却する。
a.毎分−1℃(30°F)で1037℃(1900°F)まで加熱し、そして1時間保持し、
b.毎分−6℃(20°F)で1093℃(2000°F)まで加熱し、そして2時間保持し、
c.毎分−12℃(10°F)で1121℃(2050°F)まで加熱し、そして2時間保持し、
d.毎分−12℃(10°F)で1148℃(2100°F)まで加熱し、そして8〜18時間保持し、
e.熱変形を避けるのに十分に遅い速度で約648℃(1200°F)まで、真空又は不活性ガス炉で冷却し、そして
f.不活性ガスのファンで約65℃(150°F)以下に冷却する。
(a)5.75〜6.25%のCr、6.15〜6.35%のAl、11.25〜12. 25%のCo、2〜2.25%のB、及び残部のNi(さらに、ごく微量の(即ち、0.1%未満の)他の成分及び/又は不純物)を含む約15%の第1の低融点合金粉末;(b)30.8〜31.2%のCr、25.8〜26.2%のTa、0.85〜1.15%のB、及び残部のNi(さらに、ごく微量の(即ち、0.1%未満の)他の成分及び/又は不純物)を含む約20%の第2の低融点合金粉末;(c)5.9%のCr、6.15〜6.35%のAl、7.75〜8.25%のCo、3.25〜3.75%のW、1〜1.5%のRe、4〜4.5%のTa、1〜1.5%のNb、0.4〜0.6%のHf、1.2〜1.4%のB、2.75〜3.25%のSi、及び残部のNi(さらに、ごく微量の(即ち、0.1%未満の)他の成分及び/又は不純物)を含む約10%の第3の合金粉末;そして(d)6.6〜7%のCr、5.9〜6%のAl、11.4〜12.1%のCo、4.7〜5.1%のW、1.3〜1.7%のMo、2.6〜3%のRe、6.2〜6.5%のTa、1.3〜1.7%のHf、及び残部のNi(さらに、ごく微量の(即ち、0.1%未満の)他の成分及び/又は不純物)を含む約55%の高融点粉末、を組み合わせることによって、ろう付け補修合金混合物が調製される。
a.毎分−1℃(30°F)で1037℃(1900°F)まで加熱し、そして1時間保持し、
b.毎分−6℃(20°F)で1093℃(2000°F)まで加熱し、そして2時間保持し、
c.毎分−12℃(10°F)で1121℃(2050°F)まで加熱し、そして2時間保持し、
d.毎分−12℃(10°F)で1148℃(2100°F)まで加熱し、そして8〜18時間保持し、
e.熱変形を避けるのに有効な速度で約648℃(1200°F)まで冷却し、そして少なくとも5分間保持し、
f.65℃(150°F)以下に冷却する。
応力破断(S/R)試験を代表的な母材について実施し、また本発明の粉末混合物と補修方法の好ましい態様を用いて補修された製品について実施した。この試験の一つの特徴として、母材自体に対する本発明の方法の効果を試験するために、Mar−M247及びCMSX−3のような母材物質に、本発明で使用される工程(例えば、ろう付け温度に加熱し、続いて典型的な段階的な熱拡散サイクルを実施する)に相当する熱処理を実施した。母材試験のための試験条件は982℃(1800°F)及び248211252Pa(36Ksi)であった。
低サイクル疲労を代表的な母材について実施し、また本発明の粉末混合物と補修方法の好ましい態様を用いて補修された製品について実施した。この低サイクル疲労(LCF)試験の場合、試験条件は1037℃(1900°F)、R=0、ひずみ0.53%、そして繰返し度数20CPMであった。
また、繰返し酸化試験を、1135℃(2075°F)で50分間の繰返し酸化試験サイクル及び室温で10分間のファン冷却を使用して、ろう付けされた試験片について実施した。この試験片は母材及びろう付けされたサンプルから構成され、両者は共通のPtAl被膜を有する。
Claims (9)
- 45重量%の低融点合金粉末及び55重量%の高融点合金粉末からなるろう付け合金粉末組成物であって、前記低融点合金粉末は:(a)5.75〜6.25重量%のCr、6.15〜6.35重量%のAl、11.25〜12.25重量%のCo、2.00〜2.25重量%のB、ごく微量の除去不能成分及び/又は不純物、及び残部のNiからなる、35重量%の第1の低融点粉末;(b)30.8〜31.2重量%のCr、25.8〜26.2重量%のTa、0.85〜1.15重量%のB、ごく微量の除去不能成分及び/又は不純物、及び残部のNiからなる、45重量%の第2の低融点粉末;及び(c)5.9〜6.10重量%のCr、6.15〜6.35重量%のAl、7.75〜8.25重量%のCo、3.25〜3.75重量%のW、4.00〜4.50重量%のTa、2.75〜3.25重量%のSi、1.00〜1.50重量%のRe、1.00〜1.50重量%のNb、0.40〜0.60重量%のHf、1.20〜1.40重量%のB、ごく微量の除去不能成分及び/又は不純物、及び残部のNiからなる、20重量%の第3の低融点粉末、からなる3種類の低融点合金粉末の混合物からなり、そして、前記高融点合金粉末は、6.60〜7.00重量%のCr、6.20〜6.50重量%のTa、11.45〜12.05重量%のCo、5.94〜6.30重量%のAl、2.60〜3.00重量%のRe、1.30〜1.70重量%のHf、4.70〜5.10重量%のW、1.30〜1.70重量%のMo、ごく微量の除去不能成分及び/又は不純物、及び残部のNiからなる、ろう付け合金粉末組成物。
- 50〜70重量%のNi、10〜15重量%のCr、8〜10重量%のTa、8〜10重量%のCo、4〜6重量%のAl、2〜4重量%のW、それぞれ1重量%のMo、Re、及びHf、及び、除去不能成分から成る、低融点粉末と高融点粉末との組み合わせ物である、ろう付け合金混合物。
- 58重量%のNi、11重量%のCr、9重量%のTa、9重量%のCo、5重量%のAl、3重量%のW、それぞれ1重量%のMo、Re、及びHf、及び、除去不能成分から成る、低融点粉末と高融点粉末との組み合わせ物である、ろう付け合金混合物。
- 前記組成物は、Ti、Nb、Pd、Pt、Ir、Ru、C、Si、B、及びZrから成る群から選択された1種又はそれ以上の元素のそれぞれ1重量%以下を更に含む、請求項2記載のろう付け合金混合物。
- ニッケル基超合金物質から造られた製品を補修する方法であって、この方法は、
(a)45重量%の低融点合金粉末及び55重量%の高融点合金粉末からなるろう付け合金粉末組成物であって、前記低融点合金粉末が:
( i )5.75〜6.25重量%のCr、6.15〜6.35重量%のAl、11.25〜12.25重量%のCo、2.00〜2.25重量%のB、ごく微量の除去不能成分及び/又は不純物、及び残部のNiからなる、35重量%の第1の低融点粉末;
( ii )30.8〜31.2重量%のCr、25.8〜26.2重量%のTa、0.85〜1.15重量%のB、ごく微量の除去不能成分及び/又は不純物、及び残部のNiからなる、45重量%の第2の低融点粉末;及び
( iii )5.9〜6.10重量%のCr、6.15〜6.35重量%のAl、7.75〜8.25重量%のCo、3.25〜3.75重量%のW、4.00〜4.50重量%のTa、2.75〜3.25重量%のSi、1.00〜1.50重量%のRe、1.00〜1.50重量%のNb、0.40〜0.60重量%のHf、1.20〜1.40重量%のB、ごく微量の除去不能成分及び/又は不純物、及び残部のNiからなる、20重量%の第3の低融点粉末、からなる3種類の低融点合金粉末の混合物からなり、そして、
前記高融点合金粉末が、6.60〜7.00重量%のCr、6.20〜6.50重量%のTa、11.45〜12.05重量%のCo、5.94〜6.30重量%のAl、2.60〜3.00重量%のRe、1.30〜1.70重量%のHf、4.70〜5.10重量%のW、1.30〜1.70重量%のMo、ごく微量の除去不能成分及び/又は不純物 、及び残部のNiからなる、ろう付け合金粉末組成物を用意し、
(b)前記製品の損傷した部分を前記ろう付け合金粉末組成物でろう付けし、ここで、前記ろう付けは1176℃〜1287℃(2150°F〜2350°F)の温度で実施される方法。 - 前記ろう付けされた製品を1037℃〜1148℃(1900°F〜2100°F)の温度で段階的な拡散サイクルに供する工程を更に含む、請求項5記載の方法。
- 請求項6記載の方法であって、前記ろう付けされた製品を段階的な拡散サイクルに供する工程を更に含み、この工程は以下のとおりである方法:
a.982〜1093℃(1800〜2000°F)に加熱して、0.5〜4時間保持し、
b.1037〜1148℃(1900〜2100°F)に加熱して、1〜4時間保持し、
c.1065〜1176℃(1950〜2150°F)に加熱して、1〜4時間保持し、
d.1093〜1204℃(2000〜2200°F)に加熱して、6〜24時間保持し、そして
e.周囲温度に冷却する。 - 請求項7記載の方法であって、前記第1の加熱工程が毎分−6〜+4℃(20〜40°F)の速度で実施され、前記第2の加熱工程が毎分−12〜−1℃(10〜30°F)の速度で実施され、前記第3の加熱工程が毎分−15〜−6℃(5〜20°F)の速度で実施され、前記第4の加熱工程が毎分−15〜−6℃(5〜20°F)の速度で実施されて、前記加熱が達成される方法。
- 請求項7記載の方法であって、前記段階的な拡散サイクルが以下のとりである方法:
a.毎分−1℃(30°F)で1037℃(1900°F)まで加熱し、そして1時間保持し、
b.毎分−6℃(20°F)で1093℃(2000°F)まで加熱し、そして2時間保持し、
c.毎分−12℃(10°F)で1121℃(2050°F)まで加熱し、そして2時間保持し、
d.毎分−12℃(10°F)で1148℃(2100°F)まで加熱し、そして8〜18時間保持し、
e.熱変形を避けるのに有効な速度で冷却する。
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US09/737,901 US6454885B1 (en) | 2000-12-15 | 2000-12-15 | Nickel diffusion braze alloy and method for repair of superalloys |
PCT/US2001/047838 WO2002050323A2 (en) | 2000-12-15 | 2001-12-10 | Nickel diffusion braze alloy and method for repair of superalloys |
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EP (1) | EP1341639B1 (ja) |
JP (1) | JP3996059B2 (ja) |
AU (1) | AU2002245098A1 (ja) |
BR (1) | BR0116068B1 (ja) |
DE (1) | DE60118246T2 (ja) |
ES (1) | ES2260327T3 (ja) |
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- 2001-12-10 DE DE60118246T patent/DE60118246T2/de not_active Expired - Lifetime
- 2001-12-10 JP JP2002551201A patent/JP3996059B2/ja not_active Expired - Lifetime
- 2001-12-10 BR BRPI0116068-0A patent/BR0116068B1/pt not_active IP Right Cessation
- 2001-12-10 EP EP01993245A patent/EP1341639B1/en not_active Expired - Lifetime
- 2001-12-10 ES ES01993245T patent/ES2260327T3/es not_active Expired - Lifetime
- 2001-12-10 AU AU2002245098A patent/AU2002245098A1/en not_active Abandoned
- 2001-12-10 WO PCT/US2001/047838 patent/WO2002050323A2/en active IP Right Grant
- 2001-12-10 PT PT01993245T patent/PT1341639E/pt unknown
Also Published As
Publication number | Publication date |
---|---|
DE60118246T2 (de) | 2007-03-08 |
JP2005500908A (ja) | 2005-01-13 |
WO2002050323A2 (en) | 2002-06-27 |
PT1341639E (pt) | 2006-08-31 |
EP1341639B1 (en) | 2006-03-22 |
DE60118246D1 (de) | 2006-05-11 |
US6454885B1 (en) | 2002-09-24 |
EP1341639A4 (en) | 2005-06-15 |
BR0116068A (pt) | 2006-11-21 |
BR0116068B1 (pt) | 2010-09-08 |
WO2002050323A9 (en) | 2003-04-17 |
US20020157737A1 (en) | 2002-10-31 |
ES2260327T3 (es) | 2006-11-01 |
AU2002245098A1 (en) | 2002-07-01 |
EP1341639A2 (en) | 2003-09-10 |
WO2002050323A3 (en) | 2002-09-06 |
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