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U.S. Department of Energy
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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