Model characterization and mechanical property analysis of bimetallic functionally graded turbine discs

Open Access

Table 1

Temperature dependence of thermodynamic parameters of GH4169 superalloy [14].

Temperature (°C)	Elastic modulus E (GPa)	Poisson's ratio ν	Coefficient of linear expansion	Thermal Conductivity λ(W/(m ⋅ ° C))	Specific heat c(J/(kg ⋅ ° C))	Density ρ(kg/m ³)
20	205.0	0.321	11.8	13.40	\	8240
300	184.5	0.329	13.5	17.59	481.4
400	175.5	0.339	14.1	18.84	493.9
500	168.5	0.344	14.4	20.10	514.8
600	153.0	0.355	14.8	21.77	539.0
650	142.0	0.361	15.1	22.30	556.2
750	130.5	0.381	16.2	23.63	594.7

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