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← ScienceWhich 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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