LP blade erosion: repair proves better than replacement
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Figure 1. Severe steam erosion on leading edge of LP last stage blade -
Figure 2. Shroud erosion removed -
Figure 3. Shroud welding in progress -
Figure 4. Stellite bar-nose inclusion -
Figure 5. Blade furnace -
Figure 6. Repaired blade -
Figure 7. Condition of repaired blade after 60 months operation. Very light...