SYMPOSIA PAPER Published: 01 January 1984
STP34447S

Automated Corrosion Fatigue Crack Growth Testing in Pressurized Water Environments

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This paper describes in detail a novel approach to construct a test facility for developing corrosion fatigue crack growth rate (FCGR) properties in aggressive environments. The environment studied is that of a pressurized water reactor (PWR) at 288°C (550°F) and 13.8 MPa (2000 psig). To expedite data generation, each chamber was designed to accommodate two test specimens. A common water recirculation and pressurization system was employed to service two test chambers. Thus, four fatigue crack propagation rate tests could be conducted simultaneously in the pressurized water environment. The data analysis was automated to minimize the typically high labor costs associated with corrosion fatigue crack propagation testing. Verification FCGR tests conducted on an ASTM A469 rotor steel in a room temperature air environment as well as actual PWR environment FCGR tests performed on an ASTM A533 Grade B Class 2 pressure vessel steel demonstrated that the dual specimen test facility is an excellent system for developing the FCGR properties of materials in adverse environments.

Author Information

Ceschini, LJ
Westinghouse Research and Development Center, Pittsburgh, Pa.
Liaw, PK
Westinghouse Research and Development Center, Pittsburgh, Pa.
Rudd, GE
Westinghouse Research and Development Center, Pittsburgh, Pa.
Logsdon, WA
Westinghouse Research and Development Center, Pittsburgh, Pa.
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Details
Developed by Committee: G01
Pages: 426–442
DOI: 10.1520/STP34447S
ISBN-EB: 978-0-8031-4894-9
ISBN-13: 978-0-8031-0264-4