In situ field-ion microscope study of the recovery behavior of ion-irradiated tungsten and tungsten alloys
Journal Article
·
· Acta Metall.; (United States)
- Sandia Lab., Livermore, CA
Five grades of tungsten specimens with different purity levels (resistivity ratios R of 5 x 10/sup 4/, 1.5 x 10/sup 4/, 50, 15 and 5) were irradiated in situ with 30 keV W/sup +/ ions to a dose of typically 5 x 10/sup 12/ ion cm/sup -2/ at 18/sup 0/K. Examination with a low-temperature field-ion microscope (FIM) showed the isochronal-annealing spectra of the specimens to result from a large self-interstitial atom (SIA) flux at approx. 38/sup 0/K, followed by significant SIA flux from approx. 50 to 80/sup 0/K and a small amount of additional recovery up to 120/sup 0/K. The spectra for these five different R value specimens were essentially identical between 18 and 120/sup 0/K. High-purity W specimens (R = 5 x 10/sup 4/) doped with 5 x 10/sup -5/ to 1 x 10/sup -4/ atom fraction carbon showed only a small reduction in the amount of recovery observed for the long-range migration peak at 38/sup 0/K. The isochronal recovery spectra for W-Re alloy specimens (5 x 10/sup -3/ and 3 x 10/sup -2/ atom fraction Re) were radically different from the isochronal recovery spectra of pure W specimens. For both alloys the recovery of the Stage I long-range nigration peak at 38/sup 0/K was strongly suppressed; for the 3 x 10/sup -2/ atom fraction alloy, all recovery from 18 to 120/sup 0/K was virtually eliminated.
- OSTI ID:
- 5280973
- Journal Information:
- Acta Metall.; (United States), Journal Name: Acta Metall.; (United States) Vol. 28:1; ISSN AMETA
- Country of Publication:
- United States
- Language:
- English
Similar Records
In-situ field--ion microscope study of the recovery behavior of ion-irradiated tungsten and tungsten alloys
In-situ field-ion microscope study of the recovery behavior of heavy metal ion-irradiated tungsten, tungsten (rhenium) alloys and molybdenum. [30 keV W/sup +/ and Mo/sup +/]
Stage II recovery behavior of a series of ion-irradiated platinum (gold) alloys as studied by field-ion microscopy. [0. 10, 0. 62, and 4. 0 at. percent Au and pure Pt]
Technical Report
·
Sat Mar 31 23:00:00 EST 1979
·
OSTI ID:6065200
In-situ field-ion microscope study of the recovery behavior of heavy metal ion-irradiated tungsten, tungsten (rhenium) alloys and molybdenum. [30 keV W/sup +/ and Mo/sup +/]
Technical Report
·
Wed Jun 01 00:00:00 EDT 1977
·
OSTI ID:5163645
Stage II recovery behavior of a series of ion-irradiated platinum (gold) alloys as studied by field-ion microscopy. [0. 10, 0. 62, and 4. 0 at. percent Au and pure Pt]
Technical Report
·
Sun Oct 31 23:00:00 EST 1976
·
OSTI ID:7257084
Related Subjects
36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
ANNEALING
CARBON
DISSOLUTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
HEAT TREATMENTS
METALLURGICAL EFFECTS
METALS
NONMETALS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RECOVERY
REFRACTORY METALS
RHENIUM ADDITIONS
RHENIUM ALLOYS
TRANSITION ELEMENTS
TUNGSTEN
TUNGSTEN ALLOYS
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
ANNEALING
CARBON
DISSOLUTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
HEAT TREATMENTS
METALLURGICAL EFFECTS
METALS
NONMETALS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RECOVERY
REFRACTORY METALS
RHENIUM ADDITIONS
RHENIUM ALLOYS
TRANSITION ELEMENTS
TUNGSTEN
TUNGSTEN ALLOYS