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← ScienceWhich outcome results when exceeding designed turbine blade stress limits?
A)Increased blade creep and yielding✓
B)Higher combustion efficiency occurs then
C)Decreased thermal loading elsewhere emerges
D)Fuel mixture becomes optimized
💡 Explanation
Exceeding turbine stress causes extensive blade creep because stress accelerates vacancy diffusion within the grain structure; therefore the material yields rather than maintaining its shape because of irreversible plastic deformation at high temperatures and stresses.
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