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← TechnologyWhich risk increases when internal coolant flow halts during precision grinding of nickel-based superalloy turbine blades?
A)Material galvanic corrosion accelerates rapidly.
B)Wheel loading causes surface burnishing.✓
C)Acoustic resonance induces blade cracking.
D)Cryogenic embrittlement reduces fatigue life.
💡 Explanation
Wheel loading increases because the coolant no longer washes away debris and dissipates heat. This causes the abrasive particles to clog because of increased friction that introduces surface burnishing rather than efficient material removal; therefore blade material degrades as pressure grows.
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