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← ScienceWhich consequence results when atmospheric halide ions impact jet-engine turbine blades?
A)Selective filiform corrosion initiates rapidly✓
B)Increased surface oxide passivates immediately
C)Creep resistance increases exponentially
D)Thermal barrier coating strengthens internally
💡 Explanation
Halide ions cause filiform corrosion on turbines via electromigration because the ionic conductivity of adsorbed water films facilitates electron transfer. Therefore, filiform corrosion occurs, rather than passivation because the water penetrates protective coatings.
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