Metallurgical analysis of rim cracking in an lp steam turbine disc. [PWR]

Technical Report · Mon Sep 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6779671· OSTI ID:6779671

Burghard, Jr., H. C.

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 Institute, San Antonio, TX (United States)
• OSTI ID: 6779671
• Report Number(s): EPRI-NP-1532; TRN: 80-019249
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
NICKEL-CHROMIUM STEELS
MICROSTRUCTURE
PWR TYPE REACTORS
STEAM TURBINES
TURBINE BLADES
CRACKS
ALLOYS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
NICKEL ALLOYS
NICKEL STEELS
REACTORS
STEELS
TURBINES
TURBOMACHINERY
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled