Galvanic corrosion resistance of welded dissimilar nickel-base alloys. [ALLCORR, Inconel 72]
Conference
·
OSTI ID:6969030
A program for evaluating the corrosion resistance of various dissimilar welded nickel-base alloy combinations is outlined. Alloy combinations included ALLCORR, Hastelloy C-276, Inconel 72 and Inconel 690. The GTAW welding process involved both high and minimum heat in-put conditions. Samples were evaluated in the as-welded condition, as well as after having been aged at various condtions of time and temperature. These were judged to be most representative of process upset conditions which might be expected. Corrosion testing evaluated resistance to an oxidizing acid and a severe service environment in which the alloy combinations might be used. Mechanical properties are also discussed.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Plant
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 6969030
- Report Number(s):
- DP-MS-86-111; CONF-861188-1; ON: DE87002656
- Country of Publication:
- United States
- Language:
- English
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ARC WELDING
CHEMICAL REACTIONS
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ELECTROCHEMICAL CORROSION
FABRICATION
GAS TUNGSTEN-ARC WELDING
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HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROGEN COMPOUNDS
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IRON ALLOYS
IRON COMPOUNDS
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NUCLEAR FACILITIES
OXYGEN COMPOUNDS
PROCESSING
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE PROCESSING
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
TESTING
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WELDING