Interactions of SRP waste glass with potential canisters and overpack metals

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6154892

Burns, D B; Upton, B H; Wicks, G G

Savannah River Laboratory (SRL), glass/metal leaching experiments have been performed to evaluate the effects of potential canister and overpack metals on the durability of Savannah River Plant (SRP) waste glass. A modified leaching test, based upon standard MCC-1 leaching procedures, was used. The metals studied included: low carbon steel, ferritic steels, austenitic steel, a titanium based alloy, lead , Inconel 600, and E-Brite. The simulated SRP waste glass system studied was 131/TDS waste glass, a glass system with one of the most extensive data bases available. At the conclusion of the tests, leachate samples were analyzed for key elements in solution, leachability calculations were performed and the surfaces of the metal and glass samples were examined for microstructural changes. The following results were noted: Leaching glass in the presence of 304L stainless steel, Ticode 12, E-Brite, Inconel 600, and 409 and 430 ferritic steels did not significantly affect leach rates. Glass leached in the presence of lead released about 10X less material in solution than in lead's absence. This was noted in both deionized water and basalt leachants. Glass leached in the presence of A516 low carbon steel in air released more material to solution than if the steel was absent. This effect was especially pronounced in the basalt groundwater, where an extensive scale formed on the metal that fused the metal coupon to the glass sample. However, the scale was not nearly as pronounced in the deionized water leachant. A correlation was observed between the Al/Si ratio in the reaction layer of leached glass surfaces and waste glass leaching performance. The larger the Al/Si ratio, the better the glass performed. 11 refs., 5 figs., 2 tabs.

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6154892
• Report Number(s): DP-MS-85-97; CONF-850755-8; ON: DE86003950
• Country of Publication: United States
• Language: English

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Erosion
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ALLOYS
ALUMINIUM
AUSTENITIC STEELS
BASALT
BOROSILICATE GLASS
CARBON STEELS
CHEMICAL ANALYSIS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORRELATIONS
CORROSION RESISTANT ALLOYS
DATA
DISPERSIONS
DISSOLUTION
ELECTRON MICROPROBE ANALYSIS
ELECTRON MICROSCOPY
ELEMENTS
EXPERIMENTAL DATA
FERRITIC STEELS
GLASS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
INCONEL 600
INCONEL ALLOYS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
LEACHATES
LEACHING
LEAD
MATERIALS
METALS
MICROANALYSIS
MICROSCOPY
MIXTURES
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
NUMERICAL DATA
OPTICAL MICROSCOPY
OXYGEN COMPOUNDS
QUANTITY RATIO
ROCKS
SCANNING ELECTRON MICROSCOPY
SEMIMETALS
SEPARATION PROCESSES
SILICON
SOLUTIONS
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
SYNERGISM
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
VOLCANIC ROCKS
WATER