Effects of tensile load hold time on the fatigue and corrosion-fatigue behavior of turbine blade materials

Damage evolution and life modeling of hot corrosion environment on creep‐fatigue of a directionally solidified nickel‐based superalloy

“…Thus, to validate the CDM model's applicability, uniaxial stresscontrolled fatigue and creep-fatigue tests with a stress ratio R of 0 were performed at 850 C and 980 C. The triangular (tensile hold times of 0 s) and trapezoidal waveforms were applied in the fatigue and creep-fatigue tests, respectively. HTHC fatigue/creep-fatigue experiments in Zhao et al 40 were performed at a frequency of 0.5 Hz, and in Li et al 41 at a constant stress rate of 400 MPa s À1 . The specific experimental process and data are presented in Zhao et al, 40 Li et al, 41 Hu et al, 42 and Huang et al 43 Similarly, the oxidation fatigue/creep-fatigue experimental results at 980 C are shown in Figure 3 from Hu et al 42 and Huang et al 43 HTHC fatigue/creep-fatigue experiments were conducted at 850 C for tensile hold times of 0, 1, 60, 120, and 240 s. The test results are shown in Figure 4 from Zhao et al 40 and Li et al 41…”

“…HTHC fatigue/creep-fatigue experiments in Zhao et al 40 were performed at a frequency of 0.5 Hz, and in Li et al 41 at a constant stress rate of 400 MPa s À1 . The specific experimental process and data are presented in Zhao et al, 40 Li et al, 41 Hu et al, 42 and Huang et al 43 Similarly, the oxidation fatigue/creep-fatigue experimental results at 980 C are shown in Figure 3 from Hu et al 42 and Huang et al 43 HTHC fatigue/creep-fatigue experiments were conducted at 850 C for tensile hold times of 0, 1, 60, 120, and 240 s. The test results are shown in Figure 4 from Zhao et al 40 and Li et al 41…”

“…Some of the fatigue and creep data were included in our previous publications. 40,44,45 Detailed data from the pre-exposure experiment and an introduction to the experimental process can also be found in our previous works, particularly in Li et al 41 The Levenberg-Marquart nonlinear optimization algorithm was used to determine the corresponding material parameters of the fatigue, creep, and corrosiondamage models. Equations ( 8) and ( 9) were used to fit the experimental data.…”

“…The triangular (tensile hold times of 0 s) and trapezoidal waveforms were applied in the fatigue and creep‐fatigue tests, respectively. HTHC fatigue/creep‐fatigue experiments in Zhao et al 40 were performed at a frequency of 0.5 Hz, and in Li et al 41 at a constant stress rate of 400 MPa s −1 . The specific experimental process and data are presented in Zhao et al, 40 Li et al, 41 Hu et al, 42 and Huang et al 43 …”

“…HTHC fatigue/creep‐fatigue experiments in Zhao et al 40 were performed at a frequency of 0.5 Hz, and in Li et al 41 at a constant stress rate of 400 MPa s −1 . The specific experimental process and data are presented in Zhao et al, 40 Li et al, 41 Hu et al, 42 and Huang et al 43 …”