Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Fractographic examination of ferritic alloy Charpy specimens at a fluence of 6 x 10/sup 22/ n/cm/sup 2/

Technical Report ·
OSTI ID:5680000
The fracture surfaces of thirteen Charpy specimens have been examined by scanning electron microscopy and several of these have been measured for hardness. The specimen series irradiated in the AD-2 test, second discharge includes HT-9 base metal in two product forms, and Modified 9Cr-1Mo base metal and weld metal, fluences include 13 and 26 dpa and irradiation temperatures cover the range 390/sup 0/C to 550/sup 0/C. Fracture appearance is found to be insensitive to irradiation fluence, whereas significant differences could be found in product form. It is concluded that irradiation does not encourage a new fracture mechanism such as temper embrittlement. Failure is controlled by the microstructure generated prior to irradiation.
Research Organization:
Hanford Engineering Development Lab., Richland, WA (USA)
DOE Contract Number:
AC06-76FF02170
OSTI ID:
5680000
Report Number(s):
HEDL-7541; ON: DE85014013
Country of Publication:
United States
Language:
English