Opinion on the Cause of Damage of Last Stage Blade of 37 MW Steam Turbine of Monnet Ispat and Energy Ltd., Raigarh, Chattisgarh

In the present study, it was found out that the blade failed by fatigue mechanism and the erosion-corrosion pits were held responsible for creation of fatigue cracks. It was further concluded that the operating and maintenance conditions of the turbine blade were not followed prop-erly. The problem was occuring over a period of time and not an accident kind of thing