Strengthening behavior in non-isothermal monotonic and cyclic loading in a Ni-based single crystal superalloy

Dwell-fatigue tests and variable strain rate tensile tests followed by cycling tests were performed using 〈0 0 1〉-oriented specimens made of a first-generation Ni-based single crystal superalloy. A short thermal jump from the nominal temperature of 1050 to 1200 °C was introduced along the lifetime of dwell-fatigue experiments and at the beginning of tensile tests. A fine γ′ precipitation occurred in the γ matrix upon such event which induced a...