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Titanium alloy tensile properties after neutron irradiation

Conference ·
OSTI ID:6025945

Irradiated specimens from three duplex annealed titanium alloys were tested in uniaxial tension in air from room temperature to 550/sup 0/C. The EBR-II irradiation temperature was 550/sup 0/C; the maximum fluence was 5 x 10/sup 22/ n/cm/sup 2/ (E > 0.1 MeV), or 37 dpa, the highest neutron exposure received by any titanium alloy. Alloy 6242S increased in strength due to reactor exposure by approximately 20% at test temperatures from room to 400/sup 0/C. The strength of alloy 5621S was unaffected by reactor exposure, while Ti-6Al-4V displayed strength reductions at 550/sup 0/C. Largely ductility losses of 75 to 80% of unirradiated material total elongation were noted after reactor exposure in all three alloys; however, reasonable postirradiation ductility of 0.9 to 8.8% remained in all alloys.

Research Organization:
Hanford Engineering Development Lab., Richland, WA (USA)
DOE Contract Number:
AC14-76FF02170
OSTI ID:
6025945
Report Number(s):
HEDL-SA-2440-FP; CONF-810831-62; ON: DE82000980
Country of Publication:
United States
Language:
English