Helium 3 precipitation in AISI 316L stainless steel induced by radioactive decay of tritium: Growth mechanism of helium bubbles
- CEA-DAM, Bruyeres Le Chatel (France)
- Univ. of Paris-South, Orsay (France). Lab. of Structural Metallurgy
The growth of helium bubbles in 316L stainless steel in which helium was generated from the tritium decay is examined using image analysis of transmission electron microscopy (TEM) micrographs. The influence of temperature (1073, 1223, and 1373 K), annealing time (0.083 to 1000 hours), cold deformation (92 pct) and helium content (35 and 3.7 appm) on the bubble's density, volume fraction, and mean size is investigated. For the chosen conditions of helium precipitation and growth (high temperature and large annealing time), the experimental results suggest that the observed increase in the size of the large bubbles present after a 0.083-hour aging at 1373 K proceeds via a facet limited migration and coalescence mechanism.
- OSTI ID:
- 7183153
- Journal Information:
- Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States), Journal Name: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States) Vol. 25:10; ISSN 0360-2133; ISSN MTTABN
- Country of Publication:
- United States
- Language:
- English
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ALLOYS
AUSTENITIC STEELS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
DATA
EXPERIMENTAL DATA
HIGH ALLOY STEELS
INFORMATION
INTERSTITIAL HELIUM GENERATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
Ma
Materials Studies-- (1992-)
NICKEL
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
STAINLESS STEEL-316L
STAINLESS STEELS
STEEL-CR17NI12MO3-L
STEELS
TEMPERATURE DEPENDENCE
THERMONUCLEAR REACTOR MATERIALS