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← ScienceWhich outcome results when a crystalline turbine blade experiences accelerated creep?
A)Grain boundary sliding accelerates✓
B)Stacking fault energies decrease
C)Dislocation climb processes diminish
D)Intrinsic stress resistance is amplified
💡 Explanation
Accelerated creep causes grain boundary sliding because atomic diffusion is enhanced along the boundaries. This mechanism weakens the lattice structure causing deformation; therefore, sliding occurs more rapidly rather than dislocation climb being important for primary creep at lower stresses.
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