Transmission electron microscope study of fusion environment radiation damage in iron and iron chromium alloys

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6363228

Horton, L L.S.

A transmission electron microscopy study of radiation damage microstructures in iron and iron-chromium alloys was performed. This study consisted of both qualitative and quantitative characterization of the dislocation and cavity microstructures, including determination of vacancy/interstitial character and Burgers vector for dislocation loops and analysis of the cavity morphology. The effects of irradiation temperature, fluence, helium implantation, and chromium content were investigated. Neutron irradiation (Fe specimens, 1 dpa, 455 to 1000 K) and triple-beam ion irradiation (Fe-10% Cr specimens, 10 dpa, 725 to 950 K; Fe-10% Cr specimens, 850 K, 10 dpa) were employed. In the triple-beam ion irradiation procedure, simultaneous bombardment with 4 MeV Fe/sup + +/ ions and energetic He/sup +/ and D/sub 2//sup +/ ions was used to simulate the fusion environment (10 at. ppm He/dpa and 41 at. ppm D/dpa). In addition, single-beam 4 MeV Fe/sup + +/ ion irradiations of Fe-10% Cr both with and without pre-injection of helium and deuterium were performed.

• OSTI ID: 6363228
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
BARYONS
CHROMIUM ALLOYS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISLOCATIONS
ELECTRON MICROSCOPY
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
IRON
IRON ALLOYS
IRON BASE ALLOYS
LINE DEFECTS
METALS
MICROSCOPY
MICROSTRUCTURE
NEUTRONS
NUCLEONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
TRANSITION ELEMENTS