JP2004270023A - 液体による浸食を受ける機器を処理する方法及び浸食防止被覆膜合金 - Google Patents
液体による浸食を受ける機器を処理する方法及び浸食防止被覆膜合金 Download PDFInfo
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- JP2004270023A JP2004270023A JP2003333737A JP2003333737A JP2004270023A JP 2004270023 A JP2004270023 A JP 2004270023A JP 2003333737 A JP2003333737 A JP 2003333737A JP 2003333737 A JP2003333737 A JP 2003333737A JP 2004270023 A JP2004270023 A JP 2004270023A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 29
- 239000000956 alloy Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 33
- 230000007797 corrosion Effects 0.000 title abstract description 8
- 238000005260 corrosion Methods 0.000 title abstract description 8
- 230000003449 preventive effect Effects 0.000 title 1
- 238000000576 coating method Methods 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007747 plating Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 8
- 239000010941 cobalt Substances 0.000 claims abstract description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 8
- 239000010937 tungsten Substances 0.000 claims abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 239000011733 molybdenum Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 230000003628 erosive effect Effects 0.000 claims description 42
- 229910000531 Co alloy Inorganic materials 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 5
- 238000004372 laser cladding Methods 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims 6
- 239000013589 supplement Substances 0.000 claims 1
- 239000002345 surface coating layer Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 abstract 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 239000000463 material Substances 0.000 description 21
- 238000012360 testing method Methods 0.000 description 9
- 229910001347 Stellite Inorganic materials 0.000 description 8
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 8
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 2
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 2
- IUWCPXJTIPQGTE-UHFFFAOYSA-N chromium cobalt Chemical compound [Cr].[Co].[Co].[Co] IUWCPXJTIPQGTE-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910003470 tongbaite Inorganic materials 0.000 description 2
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 2
- 208000013201 Stress fracture Diseases 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
-
- 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
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/286—Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/923—Physical dimension
- Y10S428/924—Composite
- Y10S428/926—Thickness of individual layer specified
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- 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.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- 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.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12937—Co- or Ni-base component next to Fe-base component
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Heat Treatment Of Articles (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
【解決手段】 本発明は、液体による浸食を受ける機器、特に蒸気タービン部品を処理するための方法に関し、方法は、28から32重量%のクロムと、5から7重量%のタングステンと、0.1から2重量%の珪素と、1.2から1.7重量%の炭素と、0.5から3重量%のニッケルと、0.01から1重量%の鉄と、0.01から1重量%のマンガンと、0.2から1重量%のモリブデンと、0から0.5重量%の存在可能な不純物又は他の元素と、100%に至るための残部としてのコバルトとを含むコバルト系合金によるレーザーめっきを意図している。
【選択図】 図1
Description
M. Lesser、「Wear」(1995年)、28〜34ページ F. J. Heymann、「ASM Handbook Vol. 18」、221ページ 「Erosion−resistant Coating for Low−Pressure Steam Turbine Blades」(Euromat "99")
28から32重量%のクロムと、
5から7重量%のタングステンと、
0.1から2重量%の珪素と、
1.2から1.7重量%の炭素と、
0.5から3重量%のニッケルと、
0.01から1重量%の鉄と、
0.01から1重量%のマンガンと、
0.2から1重量%のモリブデンと、
その残部を補充するためのコバルトとを含む組成を認定した。
Claims (18)
- 液体による浸食を受ける機器を処理する方法において、浸食防止被覆膜の層を形成するために前記機器の表面にコバルト系合金を塗布することから成り、前記コバルト系合金は、
28から32重量%のクロムと、
5から7重量%のタングステンと、
0.1から2重量%の珪素と、
1.2から1.7重量%の炭素と、
0.5から3重量%のニッケルと、
0.01から1重量%の鉄と、
0.01から1重量%のマンガンと、
0.2から1重量%のモリブデンと、
その残部を補充するためのコバルトとを含む方法。 - 前記塗布はレーザーめっき(レーザークラッディング)によって実行されることを特徴とする請求項1記載の方法。
- 前記機器は蒸気タービンの部品から成ることを特徴とする請求項1又は2記載の方法。
- 前記部品は蒸気タービンブレードであることを特徴とする請求項3記載の方法。
- 前記レーザーめっきはCO2又はYAGレーザーによって実行されることを特徴とする請求項2記載の方法。
- 塗布される被覆膜の層は0.1から5mmの範囲の厚さを有することを特徴とする請求項1から5のいずれか1項に記載の方法。
- 処理すべき機器の表面に対する予備加熱段階を更に含むことを特徴とする請求項1から6のいずれか1項に記載の方法。
- 前記合金の一連の塗布工程を含むことを特徴とする請求項1から7のいずれか1項に記載の方法。
- 液体による浸食を受ける機器の被覆のためのコバルト系合金において、前記コバルト系合金は、
28から32重量%のクロムと、
5から7重量%のタングステンと、
0.1から2重量%の珪素と、
1.2から1.7重量%の炭素と、
0.5から3重量%のニッケルと、
0.01から1重量%の鉄と、
0.01から1重量%のマンガンと、
0.2から1重量%のモリブデンと、
100%に至るための補充分としてのコバルトとを含むことを特徴とするコバルト系合金。 - 液体による浸食を受ける機器又は最終製品において、請求項9から14のいずれか1項に記載の合金に基づく、液体からの浸食を防止するための表面被覆膜層を具備することを特徴とする機器又は最終製品。
- 前記機器又は最終製品は蒸気タービンの部品であることを特徴とする請求項15記載の機器又は最終製品。
- 前記部品は蒸気タービンブレードである請求項16記載の機器又は最終製品。
- 前記表面被覆膜は0.1から5mmの範囲の厚さを有することを特徴とする請求項15から17のいずれか1項に記載の機器又は最終製品。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT002057A ITMI20022057A1 (it) | 2002-09-27 | 2002-09-27 | Metodo per trattare organi soggetti ad erosione da liquidi e lega antierosione di rivestimento. |
Publications (3)
Publication Number | Publication Date |
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JP2004270023A true JP2004270023A (ja) | 2004-09-30 |
JP2004270023A5 JP2004270023A5 (ja) | 2006-11-02 |
JP4310392B2 JP4310392B2 (ja) | 2009-08-05 |
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JP2003333737A Expired - Fee Related JP4310392B2 (ja) | 2002-09-27 | 2003-09-25 | 液体による浸食を受ける機器を処理する方法及び浸食防止被覆膜合金 |
Country Status (7)
Country | Link |
---|---|
US (2) | US6984458B2 (ja) |
EP (1) | EP1403398A3 (ja) |
JP (1) | JP4310392B2 (ja) |
KR (2) | KR20040027435A (ja) |
CN (1) | CN100529185C (ja) |
IT (1) | ITMI20022057A1 (ja) |
RU (1) | RU2333365C2 (ja) |
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US10570754B2 (en) | 2014-11-06 | 2020-02-25 | Mitsubishi Hitachi Power Systems, Ltd. | Steam turbine rotor blade, method for manufacturing steam turbine rotor blade, and steam turbine |
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ITMI20022057A1 (it) * | 2002-09-27 | 2004-03-28 | Nuovo Pignone Spa | Metodo per trattare organi soggetti ad erosione da liquidi e lega antierosione di rivestimento. |
US20090308847A1 (en) * | 2006-08-02 | 2009-12-17 | Kabushiki Kaisha Toshiba | Erosion prevention method and member with erosion preventive section |
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CN110747465B (zh) * | 2019-11-28 | 2021-11-16 | 上海大陆天瑞激光表面工程有限公司 | 一种热轧退火炉炉底辊的激光制造方法 |
US11661861B2 (en) * | 2021-03-03 | 2023-05-30 | Garrett Transportation I Inc. | Bi-metal variable geometry turbocharger vanes and methods for manufacturing the same using laser cladding |
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GB778359A (en) * | 1955-12-23 | 1957-07-03 | Deloro Stellite Ltd | A cobalt-chromium base alloy |
US3966422A (en) * | 1974-05-17 | 1976-06-29 | Cabot Corporation | Powder metallurgically produced alloy sheet |
GB8409047D0 (en) * | 1984-04-07 | 1984-05-16 | Mixalloy Ltd | Production of metal strip |
JPS62233403A (ja) * | 1986-04-01 | 1987-10-13 | Mitsubishi Heavy Ind Ltd | タ−ビン翼 |
JPH11336502A (ja) * | 1998-05-27 | 1999-12-07 | Mitsubishi Heavy Ind Ltd | 蒸気タービン動翼及びこの動翼を有する蒸気タービン |
ITMI20022057A1 (it) * | 2002-09-27 | 2004-03-28 | Nuovo Pignone Spa | Metodo per trattare organi soggetti ad erosione da liquidi e lega antierosione di rivestimento. |
ITMI20022056A1 (it) * | 2002-09-27 | 2004-03-28 | Nuovo Pignone Spa | Lega a base cobalto per il rivestimento di organi soggetti ad erosione da liquido. |
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2002
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2003
- 2003-09-25 EP EP03256035A patent/EP1403398A3/en not_active Withdrawn
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- 2003-09-26 KR KR1020030066818A patent/KR20040027435A/ko active Search and Examination
- 2003-09-27 CN CNB031648134A patent/CN100529185C/zh not_active Expired - Fee Related
- 2003-10-20 RU RU2003130976/06A patent/RU2333365C2/ru not_active IP Right Cessation
- 2003-10-31 US US10/697,973 patent/US6984458B2/en not_active Expired - Lifetime
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102465291A (zh) * | 2010-11-06 | 2012-05-23 | 沈阳大陆激光技术有限公司 | 采用激光熔覆技术制备扁头套自润滑耐磨层的方法 |
US10570754B2 (en) | 2014-11-06 | 2020-02-25 | Mitsubishi Hitachi Power Systems, Ltd. | Steam turbine rotor blade, method for manufacturing steam turbine rotor blade, and steam turbine |
Also Published As
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EP1403398A3 (en) | 2004-04-14 |
US20040091639A1 (en) | 2004-05-13 |
CN1497064A (zh) | 2004-05-19 |
KR20080063449A (ko) | 2008-07-04 |
US20060057305A1 (en) | 2006-03-16 |
CN100529185C (zh) | 2009-08-19 |
RU2003130976A (ru) | 2005-04-10 |
US6984458B2 (en) | 2006-01-10 |
EP1403398A2 (en) | 2004-03-31 |
KR20040027435A (ko) | 2004-04-01 |
RU2333365C2 (ru) | 2008-09-10 |
JP4310392B2 (ja) | 2009-08-05 |
ITMI20022057A1 (it) | 2004-03-28 |
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