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Which risk increases significantly when cyclical annealing stresses crystal bonds in turbine blades?

A)Elevated creep failure potential
B)Reduced thermal expansion asymmetry
C)Improved damping against oscillation
D)Increased crystalline growth rate

💡 Explanation

High-temperature annealing causes grain boundary sliding, thus **Cobalt Interdiffusion**, increasing the potential for creep failure because localized stresses concentrate at grain boundaries. Therefore, creep is accelerated rather than more even distribution with more refined methods.

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