Optimizing Creep Resistance in Wrought Superalloys: Effect of Small Variations in Ti and Al Content on γ’ and σ-Phase Precipitation Kinetics

This data set contains:

Figure 1 - Origin file (.opju) with results from TC-PRISMA simulations of γ’-phase volume fraction, number density, and particle radius of the investigated alloys in the preicpitation-hardened state. The simulations were conducted with an interfacial energy of 100mJ/m2.

Figure 2 - Origin file (.opju) with results from TC-PRISMA simulations used for TTT diagrams of the γ’-phase. The simulations were conducted with an interfacial energy of 10 and 100mJ/m2.

Figure 3 - Origin file (.opju) with raw data of the hardness measurements.

Figure 4 - Origin file (.opju) with chemical phase compositions determined by APT and TC-PRISMA simulations conducted with an an interfacial energy of 100mJ/m2.

Figure 5 - Origin file (.opju) with thermodynamic calculations (ThermoCalc / TCNI10) used for equilibrium volume percentages of the main phases.

Figure 6 - BSE images (.png) of the isothermally aged SA+PH superalloys.

Figure 7 - Origin file (.opju) with chemical phase compositions determined by EDX point analyses, APT and thermodynamic calculations (ThermoCalc / TCNI10).

Figure 8 - BSE images (.png) of the isothermally aged SA+PH T1 superalloy.

Figure 9 - Origin file (.opju) summarizing the presence or absence of σ-phase at each investigated ageing condition.

Figure 10 - Origin file (.opju) with results from TC-PRISMA simulations of γ’-phase volume fraction, number density, and particle radius of the investigated alloys prior to creep testing at 900 °C. The simulations were conducted with an interfacial energy of 10 and 100mJ/m2.

Figure 11 - Raw data files (.crp) of the conducted creep tests at 70 MPa stess and an Origin file (.opju) with the analysed datasets.

Figure 12 - Origin file (.opju) of data used to determine the apparent activation energy and the Norton exponent.

Data sets of the supplementary materials:

Figure S-1 - Origin file (.opju) with results from TC-PRISMA simulations of γ’-phase volume fraction, number density, and particle radius of the investigated alloys in the preicpitation-hardened state. The simulations were conducted with an interfacial energy of 10 and 100mJ/m2.

Figure S-2 - File (.png) showing the elemental distribution in the APT tip of the investigated T1 alloy.

Figure S-3 - File (.png) showing the elemental distribution in the APT tip of the investigated T2 alloy.

Figure S-4 - Origin file (.opju) with the chemical concentration profiles at the γ/γ’-interfaces of the precipitation-hardened (SA+PH) state, obtained by APT measurements.

Figure S-5 - Origin file (.opju) with chemical phase compositions determined by APT and TC-PRISMA simulations conducted with an an interfacial energy of 10 and 100mJ/m2.

Figure S-6 - EBSD data including a phase map and indexed diffraction pattern.

Figure S-7 - BSE images (.png) of the isothermally aged SA+PH T2 superalloy.

Figure S-8 - Raw data files (.crp) of the conducted creep tests at 900 °C and an Origin file (.opju) with the analysed datasets.