Phase development and swelling in Fe-Mn and Fe-Cr-Mn alloys during neutron irradiation

Technical Report · Mon Mar 31 23:00:00 EST 1986

DOI:https://doi.org/10.2172/6368963· OSTI ID:6368963

Gelles, D. S.; Brager, H. R.; Garner, F. A.

The object of this effort is to determine those factors which control the swelling of alloy systems which have the potential for reduced long-term activation. Whereas second phases do not form in Fe-Cr-Ni ternary alloys during neutron irradiation in the range 400-600/degree/C, iron-rich ferrite precipitates form in simple Fe-Mn and Fe-Cr-Mn alloys at 520 and 600/degree/C at 14 dpa. The cause of the large densification (2.2%) earlier observed in Fe-35Mn at 9 dpa and 420/degree/C does not appear to be related to precipitation, however, and is thought to be the result of compositional segregation on a rather fine scale. 3 refs., 8 figs.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 6368963
• Report Number(s): HEDL-7595; ON: DE89010144
• Country of Publication: United States
• Language: English

Related Subjects

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ALLOY SYSTEMS
ALLOYS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
DAMAGING NEUTRON FLUENCE
HIGH TEMPERATURE
IRON ALLOYS
IRRADIATION
MANGANESE ALLOYS
MICROSTRUCTURE
NEUTRON FLUENCE
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SWELLING
TERNARY ALLOY SYSTEMS
VOIDS