Strength and microstructure in vadium irradiated with T(d,n) neutrons at 300 to 675K
Conference
·
OSTI ID:6189639
Tensile tests and microstructural examination have been conducted on vanadium wires and foils following T(d,n) neutron irradiation at 300K, 475K, and 675K. Similar increases in yield strength were measured for samples irradiated at 300K and 475K but less strengthening occurred during irradiation at 675K. Examination of the fracture surfaces showed that all samples failed by ductile rupture after attaining more than 95% reduction in area. A reasonable correlation between microstructures and strengthing was obtained using a simple dispersed barrier strengthening model. A high density of small defect clusters was responsible for strengthening after irradiation at 300K. Following irradiation at 475K, interstitial loops with a <100> Burgers vectors were the predominant strengthening defect with a smaller contribution from a/2<111> type loops. A heterogeneous distribution of dislocation loops and planar precipitates prevented definite correlations between strength and microstructure in samples irradiated at 675K.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6189639
- Report Number(s):
- PNL-SA-12345; CONF-841246-12; ON: DE85005292
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
360106 -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
BARYONS
CHARGED PARTICLES
CRYSTAL STRUCTURE
DATA
DEUTERONS
DUCTILITY
ELEMENTARY PARTICLES
ELEMENTS
EXPERIMENTAL DATA
FERMIONS
HADRONS
HIGH TEMPERATURE
INFORMATION
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
NEUTRONS
NUCLEONS
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
TENSILE PROPERTIES
TRANSITION ELEMENTS
VANADIUM
YIELD STRENGTH
360103* -- Metals & Alloys-- Mechanical Properties
360106 -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
BARYONS
CHARGED PARTICLES
CRYSTAL STRUCTURE
DATA
DEUTERONS
DUCTILITY
ELEMENTARY PARTICLES
ELEMENTS
EXPERIMENTAL DATA
FERMIONS
HADRONS
HIGH TEMPERATURE
INFORMATION
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
NEUTRONS
NUCLEONS
NUMERICAL DATA
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
TENSILE PROPERTIES
TRANSITION ELEMENTS
VANADIUM
YIELD STRENGTH