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← ScienceWhich mechanism limits Carnot engine turbine blade lifespan?
A)Creep deformation at high temperature✓
B)Erosion from working fluid impact
C)Oxidation in high-oxygen environment
D)Fretting fatigue at blade roots
💡 Explanation
Because the high operating temperature of a Carnot engine promotes time-dependent plastic deformation via creep. This mechanism reduces blade thickness and causes imbalance, eventually leading to failure; therefore, this is the limiting factor rather than erosion that's less temperature-sensitive.
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