Fate of corrosion products released from stainless steel in marine sediments and seawater. Part 2. Sequim Bay clayey silt
This report describes laboratory experiments in which neutron-activated 347 stainless steel specimens were exposed to clayey silt from Sequim Bay, Washington. The properties and trace metal geochemistry of the sediment and the amounts of corrosion products that were released under oxic and reduced conditions and their distribution among different chemical fractions of the sediment are discussed. The distributions of Cr, Mn, Fe, Ni and Cu among different chemical forms in the Sequim Bay sediment show that DTPA removed <10% of extractable Cr, Fe and Mn, approx. 20% of extractable Ni and approx. 30% of extractable Cu. The inorganic fraction (material soluble in 2.5% acetic acid) accounted for approx. 30% of total extractable Mn and approx. 10% or less of Cr, Fe, Ni and Cu. Major portions of Cr and Cu, and a large amount of Fe were in the organic fraction. Extractable Mn, Fe and Ni were associated with hydrous oxides likely as coatings on the mineral substrate of the sediment. No Co was detectable in any of the extracts. (PSB)
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5213370
- Report Number(s):
- PNL-3466-Pt.2; ON: DE82013873; TRN: 82-013957
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CORROSION PRODUCTS
ENVIRONMENTAL IMPACTS
STAINLESS STEELS
ACTIVATION ANALYSIS
BENCH-SCALE EXPERIMENTS
CHROMIUM
CLAYS
COBALT
COBALT 60
COPPER
ENVIRONMENTAL TRANSPORT
GEOCHEMISTRY
IRON
MANGANESE
NEUTRONS
NICKEL
SEAWATER
SEDIMENTS
SILT
SLURRIES
WATER POLLUTION
ALLOYS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL ANALYSIS
CHEMISTRY
CHROMIUM ALLOYS
COBALT ISOTOPES
CORROSION RESISTANT ALLOYS
DISPERSIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IRON ALLOYS
IRON BASE ALLOYS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MASS TRANSFER
METALS
MINUTES LIVING RADIOISOTOPES
MIXTURES
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
POLLUTION
RADIOISOTOPES
STEELS
SUSPENSIONS
TRANSITION ELEMENTS
WATER
YEARS LIVING RADIOISOTOPES
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
360105 - Metals & Alloys- Corrosion & Erosion