Which consequence results when anisotropic crystal growth within directionally solidified turbine blades promotes misoriented grain boundaries?

💡 Explanation

Creep resistance critically decreases sharply due to grain boundary sliding promoted by misoriented boundaries arising from the constitutional supercooling mechanism during anisotropic solidification. Grain boundaries weaken the alloy; therefore, reducing creep resistance is the outcome, rather than options involving solidification changes.

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