Metallurgical analysis of rim cracking in an lp steam turbine disc. [PWR]
An investigation of the nature of in-service cracking in LP turbine rotors encountered in a PWR nuclear power plant was performed. The investigation was based on a metallurgical evaluation of disc rim samples from one of the two rotors involved. The program included a detailed magnetic particle inspection of the rim samples, in-depth metallographic and fractographic examinations of cracked blade attachment steeples and chemical analyses of the disc material.
- Research Organization:
- Southwest Research Inst., San Antonio, TX (USA)
- OSTI ID:
- 6779671
- Report Number(s):
- EPRI-NP-1532
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
ALLOYS
CHROMIUM ALLOYS
CRACKS
CRYSTAL STRUCTURE
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL STEELS
NICKEL-CHROMIUM STEELS
PWR TYPE REACTORS
REACTORS
STEAM TURBINES
STEELS
TURBINE BLADES
TURBINES
TURBOMACHINERY
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
ALLOYS
CHROMIUM ALLOYS
CRACKS
CRYSTAL STRUCTURE
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL STEELS
NICKEL-CHROMIUM STEELS
PWR TYPE REACTORS
REACTORS
STEAM TURBINES
STEELS
TURBINE BLADES
TURBINES
TURBOMACHINERY
WATER COOLED REACTORS
WATER MODERATED REACTORS