annealing-of-single-crystal-for-long-time-strength0 500 1000Temperature [°C]15001000500Stress [MPa]0.2 % Elastic limitThe worsening of mechanical properties of a high-strength single-crystal Ni-based alloythrough slowed cooling from the solution annealing temperature.Excessively slow cooling of single-crystal materials from the solution annealing temperature can reduce theirshort-time and long-time strength.1000100200400600800806040Stress [MPa]Larson Miller Parameter P=(9/5 . °C + 492) (20+log Time) 37 40 43 46 49 52 55 58 61x 1030.001 mm0.001 mmCorresponds to about 20 % of lifespan at 900 °C-3Best fit>10 %