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 with very...