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← ScienceWhich outcome manifests first when turbine blade cooling fails?
A)Blade creep accelerates rapidly✓
B)Erosion rates sharply decline
C)Turbine efficiency increases slightly
D)Combustor flame temperature decreases
💡 Explanation
Reduced cooling raises blade temperature. Thermally activated creep is governed by Arrhenius equation so accelerates exponentially because of the temperature-dependence of diffusion therefore elevated temperature facilitates increased creep rate rather than decreased erosion, or temperature decreases.
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