Which outcome occurs when forging a turbine blade airfoil at excessively high starting temperatures?

💡 Explanation

Increased temperatures accelerate diffusion; therefore vacancy concentration enables grain boundary sliding, leading to a coarsened microstructure and lower creep resistance, rather than the refined structure obtained at appropriate temperatures because the accelerated diffusion overwhelms planned deformation.

• Which risk increases when hydraulic actuator velocity is rapidly increased near the pump's cavitation limit?
• Which transformer fault consequence increases when a distribution network experiences continuous arcing faults?
• Which risk increases when electrohydraulic actuators experience increased temperature fluctuations?
• Which risk increases when thermal runaway occurs in an uninterruptible power supply (UPS) lithium-ion battery pack, exceeding cell limits?
• Which outcome occurs when a refrigeration system's evaporator coil ices over completely?
• Which outcome occurs when reactive power surges in a three-phase power transformer circuit beyond its compensation capabilities?