HEAT SHIELD COATING MEMBER-MANUFACTURING METHOD AND HEAT SHIELD COATING MEMBER

PROBLEM TO BE SOLVED: To provide a method for manufacturing a heat shield coating member on an alloy substrate which is used for a rotor blade and a stator blade of a gas turbine, and a heat shield coating member. SOLUTION: A TBC bond coat is coated on an alloy substrate (S102). Next, the bond coat...

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Bibliographische Detailangaben
Hauptverfasser:	SHOJI TETSUO, TANNO MASATOSHI, OGAWA KAZUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for manufacturing a heat shield coating member on an alloy substrate which is used for a rotor blade and a stator blade of a gas turbine, and a heat shield coating member. SOLUTION: A TBC bond coat is coated on an alloy substrate (S102). Next, the bond coat is re-melted by using YAG laser beams (S104). Finally, a top coat is coated on the re-melted bond coat by using, for example, atmospheric plasma spray (APS) (S106). When TBC is manufactured by the above method, a thin aluminum oxide layer is formed on a top coat/bond coat interface. Thus, diffusion of Ni, Co, Cr or the like in the bond coat to the top coat side is suppressed, and formation of mixed oxides in the top coat is suppressed. As a result, generation of cracks and separation in the top coat can be suppressed by improving the material of the top coat. COPYRIGHT: (C)2004,JPO