Abstract
Abstract The consistency of stress corrosion cracking (SCC) behavior of U-2%Mo, U-3/4%Ti, U-3/4% Quad (U-0.71Mo-0.75Nb-0.81Zr-0.46Ti), and U-3/4% Quint (U-0.84Mo-0.75Nb-0.86Zr-0.16V-0.44Ti) has been studied in three environments: (1) moist air, (2) salt contaminated moist air, and (3) salt water. Time-to-failure for four-point bend specimens decreased as the environment changed from moist air to salt contaminated moist air to salt water for all the alloys except U-3/4%Ti, in which no cracking in salt water was observed during the time of the test. Fracture modes for the four alloys were predominantly quasi-cleavage, although some intergranular fracture was observed in salt water environments.
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