Erosion-corrosion protective coating for high-temp. components

• Main Author: WOLFRAM BEELE
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2004
• Edition: 7
• Subjects: 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; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; 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

一种在高温环境下遭受磨蚀和腐蚀侵蚀的制品，由镍或钴基高温合金基体(1)以及位于该基体上的硅化物保护涂层(6)构成。一个陶瓷隔热层(2)可以位于该高温合金基体和该硅化物涂层之间，以及一个MCrAlY层(4)可以位于该陶瓷层和该高温合金基体之间。该硅化物层(6)优选的是MoSi#-[2]。 An article of manufacture which is subject to erosive and corrosive attack in a high-temperature environment is formed of a substrate of nickel or cobalt-based superalloy, and a protective silicide coating disposed on the substrate. A thermal barrier layer of ceramic may be disposed between the superalloy and the silicide layer, and an MCrAlY layer may be disposed between the ceramic and the superalloy substrate. The silicide coating is preferably MoSi2.