Analysis of Steady Heat Conduction in a Ti-6Al-4V/ZrO2 Composite FGM Plate under Convective Heat Transfer Boundary Based on FEM

A finite element model is constructed to analyze the steady heat conduction in a Ti-6Al-4V/ZrO₂ composite FGM plate under convective heat transfer boundary. From numerical calculation, when ¿¿_a = ¿¿_b = 1, T₀ = T_a = 300 K and T_b = 1800 K, the steady heat conduction distributions in the plate were obtained. The numerical results show that the temperature distribution in the composite plate is more reasonable with the increase of the FGM layer thickness. With the increase of M, the temperature on the surface of ceramics reduces by 6.2%. With the increase of porosity, there is an abrupt change for temperature at the y¿ = 0.5, its value is about 875 K. Compared with A = 0, when A = 3.99, the maximum temperature on the surface of ceramics increases by 46.4%, and the maximum temperature on the surface of metal reduces by 26.9%. Compared with ¿¿_a = ¿¿_b = 1 when ¿¿_a = ¿¿_b = 10, the temperature on the surface of metal reduces by 23.9% and the temperature on the surface of ceramics increases by 44.4%. Compared with the Ti-6Al-4V/ZrO₂ two-layered composite plate, the temperature of the Ti-6Al-4V/ZrO₂ three-layered composite FGM plate are very gentle and smooth. The results provide the foundations of theoretical calculation for the design and application and the further analysis of thermal stress of the ceramic/metal composite FGM plate.