Humid-air and aqueous corrosion models for corrosion-allowance barrier material
Abstract
Humid-air and aqueous general and pitting corrosion models (including their uncertainties) for the carbon steel outer containment barrier were developed using the corrosion data from literature for a suite of cast irons and carbon steels which have similar corrosion behaviors to the outer barrier material. The corrosion data include the potential effects of various chemical species present in the testing environments. The atmospheric corrosion data also embed any effects of cyclic wetting and drying and salts that may form on the corroding specimen surface. The humid-air and aqueous general corrosion models are consistent in that the predicted humid-air general corrosion rates at relative humidities between 85 and 100% RH are close to the predicted aqueous general corrosion rates. Using the expected values of the model parameters, the model predicts that aqueous pitting corrosion is the most likely failure mode for the carbon steel outer barrier, and an earliest failure (or initial pit penetration) of the 100-mm thick barrier may occur as early as about 500 years if it is exposed continuously to an aqueous condition at between 60 and 70{degrees}C.
- Authors:
-
- INTERA, Inc./CRWMS M&O, Las Vegas, NV (United States)
- Publication Date:
- Research Org.:
- TRW, Inc., Fairfax, VA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 206639
- Report Number(s):
- CONF-951155-90
ON: DE96006376; TRN: 96:008801
- DOE Contract Number:
- AC01-91RW00134
- Resource Type:
- Conference
- Resource Relation:
- Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 27 Nov - 1 Dec 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 05 NUCLEAR FUELS; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; PITTING CORROSION; COMPUTERIZED SIMULATION; CONTAINERS; PERFORMANCE TESTING; HIGH-LEVEL RADIOACTIVE WASTES; UNDERGROUND DISPOSAL; CONTAINMENT; LEAKS; YUCCA MOUNTAIN; MOISTURE; ALLOYS; CARBON STEELS
Citation Formats
Lee, J.H., Atkins, J.E., and Andrews, R.W.. Humid-air and aqueous corrosion models for corrosion-allowance barrier material. United States: N. p., 1995.
Web.
Lee, J.H., Atkins, J.E., & Andrews, R.W.. Humid-air and aqueous corrosion models for corrosion-allowance barrier material. United States.
Lee, J.H., Atkins, J.E., and Andrews, R.W.. 1995.
"Humid-air and aqueous corrosion models for corrosion-allowance barrier material". United States.
doi:. https://www.osti.gov/servlets/purl/206639.
@article{osti_206639,
title = {Humid-air and aqueous corrosion models for corrosion-allowance barrier material},
author = {Lee, J.H. and Atkins, J.E. and Andrews, R.W.},
abstractNote = {Humid-air and aqueous general and pitting corrosion models (including their uncertainties) for the carbon steel outer containment barrier were developed using the corrosion data from literature for a suite of cast irons and carbon steels which have similar corrosion behaviors to the outer barrier material. The corrosion data include the potential effects of various chemical species present in the testing environments. The atmospheric corrosion data also embed any effects of cyclic wetting and drying and salts that may form on the corroding specimen surface. The humid-air and aqueous general corrosion models are consistent in that the predicted humid-air general corrosion rates at relative humidities between 85 and 100% RH are close to the predicted aqueous general corrosion rates. Using the expected values of the model parameters, the model predicts that aqueous pitting corrosion is the most likely failure mode for the carbon steel outer barrier, and an earliest failure (or initial pit penetration) of the 100-mm thick barrier may occur as early as about 500 years if it is exposed continuously to an aqueous condition at between 60 and 70{degrees}C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1995,
month =
}
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