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U.S. Department of Energy
Office of Scientific and Technical Information
 

Attack of high-strength, oxidation-resistant alloys during in-can melting of simulated waste glasses

Conference ·
OSTI ID:5559984
The restistance of candidate canister alloys to penetration under the most severe conditions expected during in-can melting was directly proportional to the chromium content of the alloy, and inversely proportional to the Na/sub 2/O content of the glass melt. Specimens were exposed for 24 hours, which is the time required for in-can melting full-size waste-glass forms based on tests carried out at Pacific Northwest Laboratories (PNL) and at SRL. The penetration resistance to Frit 211 at 1150/sup 0/C for 24 hours of most alloys tested was satisfactory. The amount of penetration would not affect the integrity of the waste form. Inconel 625, Hastelloy X, and Inconel 601 were penetrated < 20 mils. This was considered excellent. Incoloy 801, Type 310 stainless steel, Type 304L stainless steel, Inconel 600, and Type 347 stainless steel were penetrated < 40 mils. This was considered good. Hastelloy C-4 was penetrated > 100 mils by a glass composed of 65 wt % Frit 21 and 35 wt % composite sludge (with uranium) at 1150/sup 0/C for only 7 hours. This amount of penetration of an in-can melting canister would not be satisfactory. 12 figures.
Research Organization:
Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
DOE Contract Number:
EY-76-C-09-0001
OSTI ID:
5559984
Report Number(s):
DP-MS-79-39; CONF-800305-3
Country of Publication:
United States
Language:
English

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CHROMIUM ALLOYS
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IRON ALLOYS
IRON BASE ALLOYS
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MOLYBDENUM ALLOYS
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NICKEL BASE ALLOYS
NIOBIUM ADDITIONS
NIOBIUM ALLOYS
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VITRIFICATION
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