Behaviors of IC10 alloy over a wide range of strain rates and temperatures: Experiments and modeling

IC10 is a newly developed Ni3Al-based superalloy. In order to investigate the flow behaviors of IC10, tensile experiments were conducted over a wide range of temperatures (25–800 °C) and strain rates (0.00001–0.01 s) on Material Test System (MTS809). Experiments show that: (1) flow behaviors are not sensitive to strain rates at ambient temperature; (2) flow behaviors vary with the temperature at the same strain rate; (3) the yield stress varies little with temperature. In order to describe the flow features of IC10, the Johnson–Cook model is employed and modified. In Johnson–Cook model, strain rate effect and temperature effect are multiplied simply with hardening effect. In the equation, the coupling effect is omitted. By introducing a temperature effect function, Johnson–Cook model is modified and used to predict flow behaviors of IC10 under different experiment conditions. The results show that it is valid.