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← TechnologyWhich outcome increases when forging turbine blades without isothermal conditions?
A)Increased creep failure at grain boundaries✓
B)Improved fatigue resistance consistently appears
C)Uniform grain structure spontaneously develops
D)Reduced quenching crack propagation occurs
💡 Explanation
Increased creep failure appears because variations in temperature during forging induce differential microstructural evolution via dynamic recrystallization, causing weaker grain boundaries therefore exacerbating creep, rather than fatigue or uniform grain structures, conditions permitting less creep.
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