Which risk increases when rapid temperature changes affect a polycrystalline metal turbine blade?

💡 Explanation

Intergranular stress corrosion cracking will occur because differential thermal expansion induces stress concentrations at grain boundaries, rather than creep resistance improvements occurring. Crack propagation follows these weakened gaps because intergranular corrosion attacks are more prone given high micro stresses; therefore cracking risk rises.

• Which outcome is amplified when orbital hybridization decreases atomic spacing in a metal?
• Which risk increases when applying pulsating DC currents to transformers?
• Which risk increases when ferromagnetic core saturation diminishes transformer binding?
• Which outcome results when rapid sublimation occurs in a sealed container?
• Which phenomenon limits oxidation coating lifetime in turbine blades at high temperatures?
• Which effect sharply decreases knock resistance in an internal combustion engine using direct fuel injection during hot restart?