Stress Corrosion Cracking (SCC) of Low Pressure Rotor Blade Attachments
Background Stress corrosion cracking (SCC) of low-pressure steam turbine rotor blade attachments is an industry issue on older fossil and nuclear units. Many units have experienced forced outages and/or extended repairs due to direct or collateral damage. Cracks that initiate in rotor steeples can eventually propagate to failure resulting in blade loss and significant damage. […]