SWELLING DURING HIGH TEMPERATURE NEUTRON IRRADIATION: THE INFLUENCE OF SURFACE ENERGY AND STACKING FAULT ENERGY ON VOID NUCLEATION.

Technical Report · Sun Feb 15 00:00:00 EST 1970

OSTI ID:4141870

Buswell, J T

An assessment has been made of the influence of the relative energies of vacancy dislocation loops and voids on the susceptibility of a material to swelling during high temperature neutron irradiation. There is experimental evidence that in pure metals in which loops are the lower energy defects higher fluences are required to produce voids. In stainless steel (AISI 304), and most other alloys, the comparative resistance to swelling cannot be explained by an initial absence of void nuclei. Voids are the lower energy defects and potential nuclei are present throughout irradiation. Alloying influences void formation in a way other than through its effect on the energies of loops and voids. It is not feasible to influence the relative energies of dislocation loops and voids by changes in alloy composition. The necessary changes in composition are large and require the removal of the solute. (auth)

• Research Organization: Central Electricity Generating Board, Berkeley (England). Berkeley Nuclear Labs.
• NSA Number: NSA-24-027802
• OSTI ID: 4141870
• Report Number(s): RD/B/N-1584
• Resource Relation: Other Information: UNCL. Orig. Receipt Date: 31-DEC-70
• Country of Publication: United Kingdom
• Language: English

Related Subjects

N30150* -Metals
Ceramics
& Other Materials-Metals & Alloys-Radiation Effects
ALUMINUM ALLOYS
BUBBLES
CHROMIUM ALLOYS
COBALT ALLOYS
DEFECTS
DISLOCATIONS
ENERGY
FAST NEUTRONS
HIGH TEMPERATURE
IRON
IRON ALLOYS
IRON BASE ALLOY
IRRADIATION
MOLYBDENUM
NICKEL
NICKEL ALLOYS
NIMONIC
RADIATION EFFECTS
STACKING FAULTS
STAINLESS STEEL-304
STAINLESS STEELS
SWELLING
TITANIUM ALLOYS
TUNGSTEN
VACANCIES
VANADIUM
VOIDS
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