FEM ANALYSIS OF THERMAL STRESSES IN GRADIENT THERMAL BARRIER COATINGS PRODUCED BY EB-PVD

Acta Metallurgica Sinica (English Letters) ›› 2001, Vol. 14 ›› Issue (6): 493-496 .

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FEM ANALYSIS OF THERMAL STRESSES IN GRADIENT THERMAL BARRIER COATINGS PRODUCED BY EB-PVD

H.B. Guo

Department of Materials Science & Engineering, Beijing University of Aeronautics andAstronautics, Beijiug 100083, China

Received:1900-01-01 Revised:1900-01-01 Online:2001-12-25 Published:2009-10-10
Contact: H.B. Guo

Abstract

Abstract: Gradient thermal barrier coatings (GTBCs) produced by co-deposition of mixtures ofAl-Al2 O3-YSZ onto metallic bond coat exhibited longer lifetimes than the two-layeredTBCs. The finite element method (FEM) numerical models were used to investigatestress and strain states in the GTBCs and traditional two-layered TBCs as they cooledto 750℃ from a stress-free state at 850℃.

Key words: EB-PVD, gradient thermal barrier coating, finite element method

H.B. Guo. FEM ANALYSIS OF THERMAL STRESSES IN GRADIENT THERMAL BARRIER COATINGS PRODUCED BY EB-PVD[J]. Acta Metallurgica Sinica (English Letters), 2001, 14(6): 493-496 .

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FEM ANALYSIS OF THERMAL STRESSES IN GRADIENT THERMAL BARRIER COATINGS PRODUCED BY EB-PVD

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