Which phenomenon decreases efficiency of steam turbine when moisture forms droplets in superheated phase?

💡 Explanation

When liquid droplets form in the superheated steam, kinetic erosive damage occurs as high-speed droplets impinge on the turbine blades, extracting energy from the blading. Therefore blade erosion results, rather than oxidation, creep, or corrosion which require different conditions or mechanisms unrelated to fluid phase change.

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