Electrochemical noise measurements on carbon and stainless steels in high subcritical and supercritical aqueous environments
- Pennsylvania State Univ., University Park, PA (United States)
- MPM Research and Consulting, Lemont, PA (United States)
The electrochemical noise induced in a pair of corroding carbon steel probes in simulated heat transport circuit fluids of a supercritical fossil-fueled power plant at temperatures up to 550 C and at pressures as high as 276 bar (4,000 psi) was measured as a function of oxygen concentration, flow rate, temperature, and pressure. Additionally, electrochemical noise measurement (ENM) was explored as a means of detecting and monitoring stress corrosion cracking in sensitized Type 304 SS in high-temperature water (up to 288 C). Experimental results from these studies indicate that the electrochemical noise induced from corrosion of steels in high-temperature aqueous systems can be measured in a reproducible manner. The magnitude of the electrochemical noise responds sensibly to changes in the chemical and physical properties of the fluid, and the pattern of the electrochemical noise contains information on the nature of the corrosion processes that occur, including general corrosion, pitting attack, and stress corrosion cracking.
- OSTI ID:
- 490806
- Report Number(s):
- CONF-9405117-; ISBN 0-8031-2032-X; TRN: IM9729%%57
- Resource Relation:
- Conference: 1. international symposium on electrochemical noise measurements for corrosion applications, Montreal (Canada), 15-16 May 1997; Other Information: PBD: 1996; Related Information: Is Part Of Electrochemical noise measurement for corrosion applications; Kearns, J.R. [ed.] [Alcoa Technical Center, Alcoa Center, PA (United States)]; Scully, J.R. [ed.] [Univ. of Virginia, Charlottesville, VA (United States)]; Roberge, P.R. [ed.] [Royal Military College of Canada, Kingston, Ontario (Canada)]; Reichert, D.L. [ed.] [DuPont Experimental Station, Wilmington, DE (United States)]; Dawson, J.L. [ed.] [CAPCIS Ltd., Manchester (United Kingdom)]; PB: 471 p.; ASTM special technical publication, 1277
- Country of Publication:
- United States
- Language:
- English
Similar Records
Crack growth rates of irradiated austenitic stainless steel weld heat affected zone in BWR environments.
Corrosion and stress corrosion cracking of type 304 stainless steel and carbon steel in simulated boiling water reactor