Which effect dominates when a closed Brayton cycle gas turbine operates with excessively high turbine inlet temperature?

💡 Explanation

When turbine inlet temperature dramatically increases towards material limits, thermal creep becomes significant because increased energy weakens metal bonds accelerating plastic deformation, leading to creep rupture of the exceedingly hot turbine blades. Turbine blade creep rupture therefore dominates; rather than reduced flow or surge from inefficient compression which rely on temperature and pressure differences.

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