Stress corrosion cracking of U--Nb alloys in air
Journal Article
·
· Corrosion; (United States)
Stress corrosion cracking (SCC) of uranium alloys was studied for several years. The SCC behavior of U-7.5% Nb-2.5% Zr in air as a function of relative humidity (RH) was summarized. The influence of aging time and temperature on the SCC of U-5% Nb/sup 2/ and the SCC of U-2.3% Nb in an aqueous environment was studied. Magnani found K/sub ISCC/ to be 22 MN m/sup -1/./sup 5/ for gamma-quenched U-4.5% Nb exposed to 100% and 0 to 10% RH. The value of K/sub ISCC/ was found to increase to 25.3 MN m/sup -1/./sup 5/ for samples aged for 80 hours at 260/sup 0/C. Koger showed that for U-6% Nb, the susceptibility to SCC increased with aging time up to about the maximum strength, but that overaged samples were resistant to SCC. The SCC behavior in air of 4 gamma-quenched uranium alloys: U-2.3% Nb, U-4.5% Nb, U-6% Nb, and U-8% Nb are reported.
- Research Organization:
- New Mexico Inst. of Mining and Tech., Socorro
- OSTI ID:
- 6427444
- Journal Information:
- Corrosion; (United States), Journal Name: Corrosion; (United States) Vol. 33:5; ISSN CORRA
- Country of Publication:
- United States
- Language:
- English
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