Ion damage in 316 stainless steel over a broad dose range

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5322192

Packan, N H; Farrell, K

Microstructural evolution was examined in annealed 316 stainless steel after heavy-ion bombardment in the range 1 to 256 dpa at 900 K with simultaneously implanted helium at a rate of 10 appm/dpa and deuterium at a rate of 25 appm/dpa. Phase decomposition was rather limited compared with that in neutron irradiations; only an unidentified plate-like precipitate at low dose, and blocky M/sub 23/C/sub 6/ particles on grain boundaries were formed. Swelling from cavity formation increased with dose to about 20% at about 170 dpa above which it appeared to saturate. Cavity concentrations saturated at about 100 dpa, and dislocations much earlier. The matrix cavities included a persistent complement of approx. 7-nm diam small cavities. Similar-size helium bubbles were prolific on the grain boundaries.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5322192
• Report Number(s): CONF-820628-4; ON: DE82017370
• Country of Publication: United States
• Language: English

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ALLOYS
ANNEALING
CHARGED PARTICLES
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TREATMENTS
HEAVY IONS
HELIUM IONS
ION IMPLANTATION
IONS
IRON ALLOYS
IRON BASE ALLOYS
IRRADIATION
MATERIALS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
STAINLESS STEEL-316
STAINLESS STEELS
STEELS