Thermal barrier coating with stable interface and manufacturing method of thermal barrier coating

• Main Authors: SONG JIA, WANG LU, YUAN FUHE, ZHAO ZHONGXING, CHENG YUXIAN
• Format: Patent
• Language: Chinese; English
• Published: 06.04.2016
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; 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; DIFFUSION TREATMENT OF METALLIC MATERIAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention provides a thermal barrier coating with a stable interface and a manufacturing method of the thermal barrier coating and belongs to the technical field of aero-engines. The coating is composed of a YSZ activated diffusion barrier, a MCrAlY metal bonding bottom layer, an aluminized layer and a YSZ ceramic face layer. The YSZ activated diffusion barrier is manufactured through an electron beam physical vapor deposition method, the MCrAlY metal bonding bottom layer is manufactured through a vacuum arc plating method, the aluminized layer is manufactured through a solid powder embedding method or a chemical vapor deposition method, the YSZ ceramic face layer is manufactured through the electron beam physical vapor deposition method, and therefore a typical columnar crystal structure is formed. The coating has the good oxidation resistance and cold-heat alternate circulating capacity. By the adoption of the method, the purpose of coating interface compatibility can be achieved, the strain tolerance o