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Microstructure of rapidly solidified Path A prime-candidate alloys following irradiation with Fe and He ions

Conference ·
OSTI ID:5613098
; ; ;
A rapidly solidified, titanium modified, cold worked Type 316 stainless steel has been irradiated simultaneously with Fe and He ions at temperatures between 450 and 650/sup 0/C. The material shows no void swelling at 450/sup 0/C even at 50 dpa. At 550/sup 0/C the swelling is very low below 40 dpa (< 0.01%) but increases with fluence to 0.4% at 60 dpa. At 650/sup 0/C both the cavity number density and size increase to give a swelling of 0.8% at 40 dpa. A conventionally ingot cast alloy with the same composition shows comparable swelling but the void number density in this material is significantly higher. Small (< 200 A) TiC particles which were originally present in the rapidly solidified material are dissolved at fluences above 40 dpa at all temperatures. A silicon and nickel rich phase has precipitated during irradiations at 550 and 650/sup 0/C.
Research Organization:
Massachusetts Inst. of Tech., Cambridge (USA)
DOE Contract Number:
AS02-78ER10107
OSTI ID:
5613098
Report Number(s):
DOE/ER/10107-7; CONF-810831-76; ON: DE82006756
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals &amp; Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development &amp; Materials Testing
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHARGED PARTICLES
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HELIUM IONS
HIGH TEMPERATURE
IONS
IRON ALLOYS
IRON BASE ALLOYS
IRON IONS
MATERIALS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
SWELLING
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS